G7- ORGANIZATION OF FREQUENCY TABLE.pptx

This is about organizing data in a frequency table for Grade 7. For educational purposes only

1. Marjorie R. Amplayo

2. Recap/ Review

3. THE FREQUENCY DISTRIBUTION TABLE

4. INTENDED LEARNING OUTCOMES: Define frequency distribution table; Organize the data collected using frequency distribution table; Construct a frequency distribution table given a set of data.

5. FREQUENCY DISTRIBUTION FREQUENCY DISTRIBUTION refers to the table that shows an item and its frequency. It is developed by counting or tallying how often each data value occurs.

6. Ungrouped data is data given as individual data points. Grouped data are framed by amassing singular perceptions of a variable into gatherings. Data as Ungrouped or Grouped .

7. Sample Raw Data GREEN RED RED VIOLET PINK YELLOW PINK GREEN BLUE BLACK PINK RED VIOLET GREEN BLUE BLUE GREEN PINK BLUE PINK BLACK BLUE RED PINK GREEN GREEN BLUE YELLOW BLACK YELLOW

8. Exercise “YOUR TURN“

9. Direction: Construct a frequency distribution table using the given data below and answer the following questions.

10. The following is the results of the survey about the favorite social media apps of students of SSS National High School.

11. FACEBOOK TWITTER FACEBOOK TIKTOK INSTAGRAM TUMBLER PINTEREST TWITTER FACEBOOK TIKTOK SNAPCHAT TUMBLER INSTAGRAM TIKTOK TIKTOK TIKTOK TIKTOK TIKTOK INSTAGRAM TIKTOK FACEBOOK TIKTOK INSTAGRAM FACEBOOK SNAPCHAT SNAPCHAT INSTAGRAM FACEBOOK SNAPCHAT FACEBOOK

12. SOCIAL MEDIA APPS TALLY FREQUENCY FACEBOOK IIII -II 7 INSTAGRAM IIII 5 PINTEREST I 1 SNAPCHAT IIII 4 TIKTOK IIII- IIII 9 TUMBLER II 2 TWITTER II 2 QUESTIONS: a. How many students participated in the survey? b. What is the difference between FB and TIKTOK users? c. Which is not commonly used? d. How many uses TIKTOK? e. Which social media apps is mostly used?

13. FREQUENCY DISTRIBUTION OF A QUANTITATIVE DATA

14. Below are the 1st quarter test scores of 40 Grade 7 students in Mathematics. Prepare a frequency distribution table for the data. 25 27 35 26 26 43 39 27 31 36 38 41 40 38 32 38 37 33 46 41 29 45 28 29 40 40 42 31 35 46 39 31 35 34 41 42 29 43 39 31

15. 25 27 35 26 26 43 39 27 31 36 38 41 40 38 32 38 37 33 46 41 29 45 28 29 40 40 42 31 35 46 39 31 35 34 41 42 29 43 39 31

16. Step 1: Solve for RANGE Subtract the lowest value from the highest value. Range = highest value – lowest value

17. Step 2: Set the desired number of classes Decide on the number of class interval desired. (usually 5 - 15). Step 3: Solve for the class width or class size i Divide the range by the desired number of class interval to determine the size of the class interval.

18. Step 4: Make the first class interval. Include the smallest value of the data. (Ex. 25-28 ) Step 5. Identify the class limits (apparent limits) Class limit is the highest and lowest values describing a class. (Example: The class intervals are 19 – 23, 24 – 28, 29 – 33...

19. Step 6. Determine the frequency of each class interval by counting the mark tally Class Interval Class Boundaries Tally Frequency Class Mark 45-48 41-44 37-40 33-36 29-32 25-28

20. Step 6. Determine the frequency of each class interval by counting the mark tally

21. Step 7. Distribute data in classes. The column for tally is optional. Class Interval Class Boundaries Tally Frequency Class Mark 45-48 III 3 41-44 IIII-II 7 37-40 IIII-IIII 10 33-36 IIII-I 6 29-32 IIII-III 8 25-28 IIII-I 6

22. To find CLASS BOUNDARY , add 0.5 to the upper class limit and subtract 0.5 to the lower class limit. The CLASS MARK is the midpoint of the class. It can be found by getting the average of the class limits. For example, the class mark for 45-48 can be solved by = = 46.5  

23. Assessment On a ½ sheet of paper, illustrate and solve the following problems accurately. Label your final answer properly.

24. Supposed these are the raw scores of 30 students in a 20-item quiz and you are about to organize and construct a frequency distribution table. (desired number of classes = 5) 5 13 11 9 15 20 16 12 11 8 4 9 13 7 15 19 9 6 8 13 11 12 11 7 9 12 15 17 11 6

25. 5 13 11 9 15 20 16 12 11 8 4 9 13 7 15 19 9 6 8 13 11 12 11 7 9 12 15 17 11 6

26. Supposed these are the 1 ST Quarter Mathematics Grades of 30 students in XXX National High School. Organize and construct a frequency distribution table.

27. 96 98 95 95 78 91 91 90 86 88 89 87 85 85 85 85 82 81 75 74