Measures of central tendecy

Good Morning!

ObjectiveTo describe and compute the three Measures of Central Tendency (Ungrouped Data)

L A D D E R GAME

7+8+3+2=

÷ 4 = + 5 + 9 + 5 =

÷ 4 =

+ 3 + 5 + 2=

÷ 4 =

Fill the missing number in the ladder using the fundamentals operations given.

•How did you arrive from your answers?List the numbers from the 1st step ladder, then arrange the number into increasing order.

•What possible number is in the middle? •Do the same instruction on the second up to third step ladder.

Of all the numbers starting from the 1st up to 3rd step ladder, what number appears the most?

•How many times does the number appears?

2, 3, 4,5, 6, 16, 24

4, 5, 5, 5,6, 9, 24

2,3,4,5,7,8,20

5

Group Tasks

Cheesedog Spaghetti Ice Cream

CHEESEDOG GROUPThe Alaska Aces and San

Miguel Beermen, two teams in Philippine basketball, fight for the championship last January 17, 2016, and the scores for four quarters are in table below. Show that the four scores of each team appear in one value to represent the total score (100, 91). What value represents the San Miguel Beermen? and for Alaska Aces?

QUARTERS

SCORESSan

Miguel Beermen

Alaska Aces

1 24 262 24 283 25 264 19 20

Total 92 100

SPAGHETTI GROUPThe weekly Salary of the six employees at the Jollibee in Naic, Cavite are 1,000, 1,500, 2,000, 1,900 and 1,200. Find the middle value of the weekly salaries of the six employees.

ICE CREAM GROUPYaya Dub and Alden have six fanpage on facebook, the Global Maiden, Aldub, Maidenatics, Aldenatics, Alden Richards, Maine Mendoza and also Yaya Dub fanpage. Each page has a number of chapters. Find the most common score in the data given.

FANPAGE CHAPTERS

Global Maiden 10

Aldub 15

Maidenatics 11

Aldenatics 15

Alden Richards and Maine Mendoza

19

Yaya Dub 20

ANSWERSCHEESEDOG

GROUPSAN MIGUEL BEERMEN

(MEAN = 23)ALASKA ACES

(MEAN = 25) SPAGHETTI GROUPWEEKLY SALARIES

(MEDIAN = 1500)

ICE CREAM GROUPMOST COMMON SCORE

(YAYADUB AND ALDEN FANPAGE-CHAPTERS)

(MODE = 15)

How to find the Mean? Median? Mode?

Let’s Apply! Description: Find the mean, median and mode of ungrouped data.

Group 1An accessory store was able to sell 6 pair of earrings, 5 rings, 6 bracelets and 10 necklaces in a day. What will be the mean, median and mode?

Group 2Ten children gave contributions to GMA Foundation for the people who suffered from Typhoon Yolanda, they gave contribution in pesos: 150, 100, 100, 200, 250, 300, 350, 100, 100 and 150. Find the mean, median and mode.

Group 3The scores of 5 students in G8 Guava in a ten .item quiz are 10,8,8,7 and 6. What will be the mean, median and mode?

Answers

MEAN MEDIANMODE

Group 1 6.75 6 6Group 2 180 150 100Group 3 7.8 8 8

Q U I Z

Direction: Choose the letter of the best word being described.

1. What is the most commonly used measures of central tendency and it is also known as average?

a. mean b. median c. mode2. It is the measure or value which occurs most

frequently or most common in a set of data. a. mean b. median c. mode

3. It is sometimes called “the middle value” in a set of data arranged in increasing or decreasing order.

a. mean b. median c. mode4. The library logbook shows that 58,60,54,35 and 97 books respectively were borrowed from Monday to Friday last week. Find the median.

a.54 b.58 c.605.Allen needs to know the average of his score 10-item quizzes in mathematics ,the score are 10, 5, 8, 6, 8, 10, 10, 9, 4 and 10. What will be the mean?a.8 b.9 c.10

Direction: Choose the letter of the best word being described.

1. What is the most commonly used measures of central tendency and it is also known as average?

a. mean b. median c. mode2. It is the measure or value which occurs most

frequently or most common in a set of data. a. mean b. median c. mode

3. It is sometimes called “the middle value” in a set of data arranged in increasing or decreasing order.

a. mean b. median c. mode4. The library logbook shows that 58,60,54,35 and 97 books respectively were borrowed from Monday to Friday last week. Find the median.

a.54 b.58 c.605.Allen needs to know the average of his score 10-item quizzes in mathematics ,the score are 10, 5, 8, 6, 8, 10, 10, 9, 4 and 10. What will be the mean?a.8 b.9 c.10

ASSIGNMENT

Compute the mean, median, mode of your previous 5 quizzes.

“Tell me and I forget. Teach me and I

remember. Involve me and I learn.”

-Benjamin Franklin