Mathematics-Statistics-Quarter-Four.pptx

math 7

1. REVIEW

2. 1. The frontliners’ heart rate was monitored. The result shows average heart rate is 75bpm and the standard deviation is 0.5. Which statement is TRUE ? A. All heart rates are equal B. The heart rate of frontliners is too different from each other. C. The mean heart rate is 7.5bpm D. The standard deviation shows that the heart rate is too close to each other.

3. 1. The frontliners’ heart rate was monitored. The result shows average heart rate is 75bpm and the standard deviation is 0.5. Which statement is TRUE ? A. All heart rates are equal B. The heart rate of frontliners is too different from each other. C. The mean heart rate is 7.5bpm D. The standard deviation shows that the heart rate is too close to each other.

4. 2. The score of 20 students in a 30-item Science test has a mean of 26, a median of 26 and mode of 26. Which is TRUE about the data? A. All students got perfect score. B. Majority of the students got 26. C. More students got 20 than 26. D. The average of scores of the students is 20.

5. 2. The score of 20 students in a 30-item Science test has a mean of 26, a median of 26 and mode of 26. Which is TRUE about the data? A. All students got perfect score. B. Majority of the students got 26. C. More students got 20 than 26. D. The average of scores of the students is 20.

6. 3 . The mean of 50 students in a quiz is 41.5. What does it mean when the student scored above 41.5? A. The student who scored above 41.5 cheated. B. The student who scored above 41.5 did better than average. C. The student who scored above 41.5 did not perform well. D. The students who scored above 41.5 got a failing score.

7. 3 . The mean of 50 students in a quiz is 41.5. What does it mean when the student scored above 41.5? A. The student who scored above 41.5 cheated. B. The student who scored above 41.5 did better than average. C. The student who scored above 41.5 did not perform well. D. The students who scored above 41.5 got a failing score.

8. 4. The mean score of 40 students in a quiz is 36.6. What does it mean when a student scored below 36.6? A. The student who scored below 36.6 cheated. B. The student who scored below 36.6 did study their lesson well. C. The student who scored below 36.6 got almost perfect score. D. The student who scored below 36.6 performed less than average.

9. 4. The mean score of 40 students in a quiz is 36.6. What does it mean when a student scored below 36.6? A. The student who scored below 36.6 cheated. B. The student who scored below 36.6 did study their lesson well. C. The student who scored below 36.6 got almost perfect score. D. The student who scored below 36.6 performed less than average.

10. 5 . Which statistical measure is appropriate to use if a store owner wants to know the most saleable product for the whole week? Mean C. Mode Median D. Range

11. 5 . Which statistical measure is appropriate to use if a store owner wants to know the most saleable product for the whole week? Mean C. Mode Median D. Range

12. 6. The following are the ages of the students in a literature class: 24, 30, 18, 28, 32, 18, 20. What measure will determine the age gap of the oldest and youngest student? Mean C. Mode Median D. Range

13. 6. The following are the ages of the students in a literature class: 24, 30, 18, 28, 32, 18, 20. What measure will determine the age gap of the oldest and youngest student? Mean C. Mode Median D. Range

14. 7 . The score that appeared most in Grade 7 English quiz is 12. What measure of central tendency is 12? Mean C. Mode Median D. Range

15. 7 . The score that appeared most in Grade 7 English quiz is 12. What measure of central tendency is 12? Mean C. Mode Median D. Range

16. 8. If the range of a set of scores is 15 and the lowest score is 5, what is the highest score? 10 C. 20 15 D. 30

17. 8. If the range of a set of scores is 15 and the lowest score is 5, what is the highest score? 10 C. 20 15 D. 30

18. 9 . What is the sample standard deviation of the given data set? {6, 4, 9, 3, 8} 2.40 C. 2.50 2 .45 D. 2.55

19. 9 . What is the sample standard deviation of the given data set? {6, 4, 9, 3, 8} 2.40 C. 2.50 2 .45 D. 2.55

20. 10. What is the sample variance of the given data set? {6, 4, 9, 3, 8} 6.4 C. 6.6 6.5 D. 6 .7

21. 10. What is the sample variance of the given data set? {6, 4, 9, 3, 8} 6.4 C. 6.6 6.5 D. 6 .7

22. 11. Find the range of the following data, 2, 7, 18, 11, 5, 5, 7, and 15. 14 C. 1 6 1 5 D. 17

23. 11. Find the range of the following data, 2, 7, 18, 11, 5, 5, 7, and 15. 14 C. 1 6 1 5 D. 17

24. 12 . What is the range of a dataset? A. The average of all values in the dataset B. The difference between the highest and lowest values in the dataset C. The most frequently occurring value in the dataset D. The total number of values in the dataset

25. 12 . What is the range of a dataset? A. The average of all values in the dataset B. The difference between the highest and lowest values in the dataset C. The most frequently occurring value in the dataset D. The total number of values in the dataset

26. 13 . Which measure of variability is most commonly used due to its ability to provide a measure of spread in the same units as the data? A. Average deviation B. Range C. Standard deviation D. Variance

27. 13 . Which measure of variability is most commonly used due to its ability to provide a measure of spread in the same units as the data? A. Average deviation B. Range C. Standard deviation D. Variance

28. 14 . Which measure of variability accounts for the squared differences from the mean? A. Average deviation B. Range C. Standard deviation D. Variance

29. 14 . Which measure of variability accounts for the squared differences from the mean? A. Average deviation B. Range C. Standard deviation D. Variance

30. 15. Audrey got the following scores in the fourth quarter quizzes: 12, 10, 16, x, 13, and 9. What must be her scores on the 4th quiz to get an average of 12? 12 C. 15 13 D. 1 6

31. 15. Audrey got the following scores in the fourth quarter quizzes: 12, 10, 16, x, 13, and 9. What must be her scores on the 4th quiz to get an average of 12? 12 C. 15 13 D. 1 6

32. For items 16-17: Raven recorded the age of his 12 classmates and the age are as follows: 14, 14, 16, 15, 16, 16, 13, 17, 13, 15, 16, 17

33. 16 . What is the mode of the recorded ages? 14 C. 16 15 D. 17

34. 16 . What is the mode of the recorded ages? 14 C. 16 15 D. 17

35. 17. What is the average age of the 10 students? 15.17 C. 17.15 16.5 D. 17.17

36. 17. What is the average age of the 10 students? 15.17 C. 17.15 16.5 D. 17.17

37. 18 . A group of 8 students took a 10-item quiz and their scores are: 4, 6, 7, 4, 5, 2, 7 and 4. Which shows the correct way to get the mean? A. Add the scores and divide the sum by 8. B. Arrange the scores in increasing order and identify the middle score. C. Identify the score that appeared most frequently. D. Get the difference between the highest score and the lowest score.

38. 18 . A group of 8 students took a 10-item quiz and their scores are: 4, 6, 7, 4, 5, 2, 7 and 4. Which shows the correct way to get the mean? A. Add the scores and divide the sum by 8. B. Arrange the scores in increasing order and identify the middle score. C. Identify the score that appeared most frequently. D. Get the difference between the highest score and the lowest score.

39. 19 . What statistical measure is used to determine the most popular student of a certain school? Mean C. Mode Median D. Range

40. 19 . What statistical measure is used to determine the most popular student of a certain school? Mean C. Mode Median D. Range

41. 20. What is the middle value in the set of data arranged in increasing or decreasing order? Mean C. Mode Median D. Range

42. 20. What is the middle value in the set of data arranged in increasing or decreasing order? Mean C. Mode Median D. Range

43. 21. Which measure of central tendency is generally used in determining the final grade of a student? Mean C. Mode Median D. Range

44. 21. Which measure of central tendency is generally used in determining the final grade of a student? Mean C. Mode Median D. Range

45. 22. When is a histogram most useful? A. When analyzing data with few data points B. When comparing two unrelated datasets C. When summarizing data in a table format D. When visualizing the frequency of continuous data

46. 22. When is a histogram most useful? A. When analyzing data with few data points B. When comparing two unrelated datasets C. When summarizing data in a table format D. When visualizing the frequency of continuous data

47. 23. Last month, the amount of electricity used in Mrs. Masangkay Restaurant was 1,700 kwh (kilowatt-hours). What appropriate graph must be used to show the percentage of the amount used by different appliances in her restaurant? Bar Graph C. Line Graph Histogram D. Pie Chart

48. 23. Last month, the amount of electricity used in Mrs. Masangkay Restaurant was 1,700 kwh (kilowatt-hours). What appropriate graph must be used to show the percentage of the amount used by different appliances in her restaurant? Bar Graph C. Line Graph Histogram D. Pie Chart

49. 24. In a line graph, what do the points connected by lines represent? A. The distribution of data across different intervals B. The frequency of each category C. The trend or change in data over time D. The total number of data points

50. 24. In a line graph, what do the points connected by lines represent? A. The distribution of data across different intervals B. The frequency of each category C. The trend or change in data over time D. The total number of data points

51. 25. Which type of graph is best suitable to compare the electric consumption of a household for 12 months? Bar Graph C. Line Graph Histogram D. Pie Chart

52. 25. Which type of graph is best suitable to compare the electric consumption of a household for 12 months? Bar Graph C. Line Graph Histogram D. Pie Chart

53. 26. Which type of chart would be most suitable for comparing the sales performance of different products? Bar Graph C. Line Graph Histogram D. Pie Chart

54. 26. Which type of chart would be most suitable for comparing the sales performance of different products? Bar Graph C. Line Graph Histogram D. Pie Chart

55. 27. Which illustrates an Ogive?

56. 27. Which illustrates an Ogive?

57. 28. Which of the following illustrations shows the graph of a Histogram?

58. 28. Which of the following illustrations shows the graph of a Histogram?

59. 29. What is the purpose of using an Ogive? A. To compare different categories within a whole B. To display the frequency distribution of data C. To show the cumulative frequency distribution of data D. To represent relationships between variables

60. 29. What is the purpose of using an Ogive? A. To compare different categories within a whole B. To display the frequency distribution of data C. To show the cumulative frequency distribution of data D. To represent relationships between variables

61. 30 . What is the primary purpose of a pie chart? To compare different categories within a whole To display the frequency distribution of data To represent relationships between variables D. To show trends over time

62. 31 . Which type of graph is used to show information that changes over time and have several points connected by straight lines? Bar Graph C. Line Graph Histogram D. Pie Chart

63. 31 . Which type of graph is used to show information that changes over time and have several points connected by straight lines? Bar Graph C. Line Graph Histogram D. Pie Chart

64. 32 . Which type of graph uses parallel bars, either horizontal or vertical, to represent different counts/frequencies for several categories? Bar Graph C. Line Graph Histogram D. Pie Chart

65. 32 . Which type of graph uses parallel bars, either horizontal or vertical, to represent different counts/frequencies for several categories? Bar Graph C. Line Graph Histogram D. Pie Chart

66. 33 . What are the visual tools that help us present or display data or information in a most convenient way that readers could easily analyze without browsing the numbers? A. Data and Files B. Frequency Distribution C. Graphs and Charts D. Survey Questionnaire

67. 33 . What are the visual tools that help us present or display data or information in a most convenient way that readers could easily analyze without browsing the numbers? A. Data and Files B. Frequency Distribution C. Graphs and Charts D. Survey Questionnaire

68. 34. Which of the following instruments should be used in constructing a pie chart to divide the circle into its parts? Compass C. Protractor Meter Stick D. Ruler

69. 34. Which of the following instruments should be used in constructing a pie chart to divide the circle into its parts? Compass C. Protractor Meter Stick D. Ruler

70. 35 . Which type of graph is a circle divided into sectors proportional to its frequencies? Bar Graph C. Line Graph Histogram D. Pie Chart

71. 35 . Which type of graph is a circle divided into sectors proportional to its frequencies? Bar Graph C. Line Graph Histogram D. Pie Chart

72. For 36 – 37, The data below shows the mass of 40 students in a class. The measurement is to the nearest kg. Mass (Kg) Frequency 5 – 9 2 10 – 14 4 15 – 19 7 20 – 24 10 25 – 29 4 30 – 34 6 35 – 39 7

73. 36 . What is the width of the class interval of the given data above? 4 C. 5 6 D. 7

74. 36 . What is the width of the class interval of the given data above? 4 C. 5 6 D. 7

75. 37 . What is the range of the given data above? 26 C. 30 28 D. 34

76. 37 . What is the range of the given data above? 26 C. 30 28 D. 34

77. 38 . What do you call the sampling method where the population is divided into groups called strata? A. Cluster Sampling B. Simple Random Sampling C. Stratified Random Sampling D. Systematic Random Sampling

78. 38 . What do you call the sampling method where the population is divided into groups called strata? A. Cluster Sampling B. Simple Random Sampling C. Stratified Random Sampling D. Systematic Random Sampling

79. 39 . A supermarket wanted to know their customers' habits. They randomly choose one customer from each group divided based on their age-brackets. Which type of sampling method did the supermarket apply? A. Cluster Sampling B. Simple Random Sampling C. Stratified Random Sampling D. Systematic Random Sampling

80. 39 . A supermarket wanted to know their customers' habits. They randomly choose one customer from each group divided based on their age-brackets. Which type of sampling method did the supermarket apply? A. Cluster Sampling B. Simple Random Sampling C. Stratified Random Sampling D. Systematic Random Sampling

81. 40. What table lists numerical data and have been grouped in intervals and the frequency of occurrence of the data? Average Class width C. Da ta Frequency Table

82. 40. What table lists numerical data and have been grouped in intervals and the frequency of occurrence of the data? Average Class width C. Da ta D. Frequency Table

83. 41. Which sampling method randomly chooses its sample based on a regular interval? A. Cluster Sampling B. Simple Random Sampling C. Stratified Random Sampling D. Systematic Random Sampling

84. 41. Which sampling method randomly chooses its sample based on a regular interval? A. Cluster Sampling B. Simple Random Sampling C. Stratified Random Sampling D. Systematic Random Sampling

85. 42. What type of question is this “Do you have cellphone?”? A. Closed question B. Matching type C. Multiple-choice question D. Open-ended question

86. 42. What type of question is this “Do you have cellphone?”? A. Closed question B. Matching type C. Multiple-choice question D. Open-ended question

87. 43 . What is the method of gathering information from several individuals to produce information that will represent the larger population? Sample Survey C. Questionnaire D. Data

88. 43 . What is the method of gathering information from several individuals to produce information that will represent the larger population? Sample Survey C. Questionnaire D. Data

89. 44 . Which method of data collection relies on asking questions that can be done face-to-face, through phone call, or through video call? Interview Observation C. Questionnaire D. Survey

90. 44 . Which method of data collection relies on asking questions that can be done face-to-face, through phone call, or through video call? Interview Observation C. Questionnaire D. Survey

91. 45 . Which of the following statements/questions is an example of open-ended question? A. Are you feeling better today? B. Do you have cellphone? C. What is your most memorable experience during the time of pandemic? D. Will you please do me a favor?

92. 45 . Which of the following statements/questions is an example of open-ended question? A. Are you feeling better today? B. Do you have cellphone? C. What is your most memorable experience during the time of pandemic? D. Will you please do me a favor?

93. 46 . A teacher wants to know how many students in the class have a pet. What should the teacher do to find out? Ask each student to write down if they have a pet or not. B. Count the number of pet shops near the school. C. Count the number of students who raise their hands. D. Guess based on the teacher's own knowledge.

94. 46 . A teacher wants to know how many students in the class have a pet. What should the teacher do to find out? Ask each student to write down if they have a pet or not. B. Count the number of pet shops near the school. C. Count the number of students who raise their hands. D. Guess based on the teacher's own knowledge.

95. 47 . Which of the following is NOT a statistical question? A. How many minutes do grade 7 students typically spend browsing internet each week? B. How much time do you spend browsing internet last week? C. What do grade 8 students prefer to eat for breakfast? D. What is the typical number of pets owned by students in my class?

96. 47 . Which of the following is NOT a statistical question? A. How many minutes do grade 7 students typically spend browsing internet each week? B. How much time do you spend browsing internet last week? C. What do grade 8 students prefer to eat for breakfast? D. What is the typical number of pets owned by students in my class?

97. 48 . The question "How old is my student?" is an example of non-statistical question, which of the following makes it as statistical question? A. How old are the students in my classroom? B. How old is my student, Larra ? C. How old is your classmate? D. None of the above

98. 48 . The question "How old is my student?" is an example of non-statistical question, which of the following makes it as statistical question? A. How old are the students in my classroom? B. How old is my student, Larra ? C. How old is your classmate? D. None of the above

99. 49 . Which of the following problems uses statistics? A. A sari-sari store owner records the frequency of sales of the five-leading detergent soaps. B. Glen deposits 5,000 in his account. C. Rhea measures her height. D. The man walks 25 km east.

100. 49 . Which of the following problems uses statistics? A. A sari-sari store owner records the frequency of sales of the five-leading detergent soaps. B. Glen deposits 5,000 in his account. C. Rhea measures her height. D. The man walks 25 km east.

101. 50. Which of the following is a statistical question? A. Did you get my ball pen? B. How old are you? C. What is the average height of students in a class? D. Where did you live?

102. 50. Which of the following is a statistical question? A. Did you get my ball pen? B. How old are you? C. What is the average height of students in a class? D. Where did you live?