Measure of Central Tendency of Ungrouped Data

Grade 7 - Topic

1. Welcome Grade 7 ❤

2. PRAYER Our Heavenly Father, We offer You this day our thoughts, our works and the words we say. Help us to study and learn. Teach us to be humble and obedient. Make us love You more, Amen.

3. Crossword: Clues: ACROSS 2. It is calculated by dividing the sum of the values in the set by their number. 3. The point or position at an equal distance from the sides. DOWN 1. Arrangement of things or numbers in a well-defined manner 2. The final answer we get after the process is called the sum 3. The greatest in amount or quantity A O M E N D E S

4. Crossword: Clues: ACROSS 2. It is calculated by dividing the sum of the values in the set by their number. 3. The point or position at an equal distance from the sides. DOWN 1. Arrangement of things or numbers in a well-defined manner 2. The final answer we get after the process is called the sum 3. The greatest in amount or quantity A V E R A G O M E N D E D R I D L D I T I O O S T

5. __ __ N __ __ __ C E N T E R

6. Measures of Central Tendency (Ungrouped Data) Prepared by: Ms. Jeska E. Amante

7. Measures of Central Tendency MEAN MEDIAN MODE

8. IS THE AVERAGE ADD ALL THE DATA THEN DIVIDE THE SUM BY THE COUNT OF DATA MEAN

9. 1. The following is the list of weekly savings of ten students in pesos. 60, 50, 40, 50, 70, 50, 50, 80, 70, 70. Find the average weekly savings per student. Find the mean: Solution: = Php 59.00

10. MEDIAN IS THE MIDDLE DATA OF AN ARRAY WHEN THERE ARE EVEN NUMBERS OF ELEMENTS, THE MEDIAN IS THE MEAN OF THE TWO MIDDLE NUMBERS

11. 1. In the list shows the scores of 9 students in Mathematics quiz: 12, 15, 17, 18, 19, 20, 18, 15, 17. What is the median in the given data? Find the median: Solution: Arrange the set of scores in ascending/descending order: Then, find the value at the middle. 12, 15, 15, 17, 17, 18, 18, 19, 20 12, 15, 15, 17, 17 , 18, 18, 19, 20 the median is 17

12. 2. The following are the grades in Science of 12 students : 89, 90, 92, 90, 86, 85, 90, 95, 88, 86, 85, 87. Find its median. Find the median: Solution: 85, 85, 86, 86, 87, 88, 89, 90, 90, 90, 92, 95 85, 85, 86, 86, 87, 88, 89 , 90, 90, 90, 92, 95 the median value is 88.5

13. MOST FREQUENT DATA UNIMODAL - 1 MODE BIMODAL - 2 MODE MULTIMODAL- 3 OR MORE MODE NO MODE MODE

14. Find the mode 1.Find the mode of the set of values: 5, 7, 2, 9, 7, 10, 8, 5, 7. Answer: the mode is 7 5, 7 , 2, 9, 7 , 10, 8, 5, 7 .

15. Find the mode 2.Here are the grades of students in English: 88, 90, 88, 90, 85, 86, 87, 95, 88, 90, 95, 90, 88, 85, 84, 80 . Find its mode. Answer: Mode: 88 and 90 88 , 90 , 88 , 90 , 85, 86, 87, 95, 88 , 90 , 95, 90 , 88 , 85, 84, 80 BIMODAL

16. Find the mode 3 . Find the mode of the following set of numbers: 7, 3, 8, 11, 5, 19, 4, 10 Answer: NO MODE

17. Tune of: Are you sleeping Mean is the average (2x) You add then divide (2x) Median is the middle Arrange then find the middle Mode is most frequent (2x)

18. SEATWORK TIME!!

19. Direction: Read and understand each questions carefully. Circle the letter of
the correct answer.

1. It is the other term used for average.
A. Mean B. Median C. Mode D. No mode

2. What do you call with the middle number in a data set when the numbers are arranged in descending order?
A. Mean B. Median C. Mode D. Trimodal

3. It is the number that occurs most often in a data set.
A. Mean B. Median C. Mode D. Middle

4. Find the median in the given set of data: 89, 90, 91, 95, 96, 96, 98.
A. 91 B. 95 C. 96 D. 98

5. What do you call in a data set when two mode occurs.
A. Mean B. Bimodal C. Mode D. Trimodal

20. Direction: Read and understand each questions carefully. Circle the letter of
the correct answer.

1. It is the other term used for average.
A. Mean B. Median C. Mode D. No mode

2. What do you call with the middle number in a data set when the numbers are arranged in descending order?
A. Mean B. Median C. Mode D. Trimodal

3. It is the number that occurs most often in a data set.
A. Mean B. Median C. Mode D. Middle

4. Find the median in the given set of data: 89, 90, 91, 95, 96, 96, 98.
A. 91 B. 95 C. 96 D. 98

5. What do you call in a data set when two mode occurs.
A. Mean B. Bimodal C. Mode D. Trimodal

21. ASSIGNMENT

22. THANK YOU AND GOD BLESS! Prepared by: Jeska E. Amante