April 16 Effects of Change on Central Tendency Review

Match the definition with the correct Measure of Central Tendency:

the middle number of the data after ordering from least to greatest

My data set is {1, 2, 3}. Predict how will the median change if I add a 6 to the data set.

The data set {12, 18, 24, 30}

The mean=21 The median=21

How will the median be affected by adding 50 to the data set ?

The data set {12, 18, 24, 30}

The mean=21 The median=21

How will the mean be affected by adding 16 to the data set ?

Jason scored the following on his test: 87, 75, 67, 85, 91, 80, and 95. His teacher allowed him to retake a test to replace his lowest test score. If he scores an 80, how will this effect the median?

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below:

9, 8, 12, 6, and 10

If she reads 15 pages on Saturday, how will that effect the mean?

The scores in a basketball match are as follows:

7, 13, 18, 24, 9, 3, 18

If the team scored 18 points on their next game, how will this effect the mode of the scores?

The points scored in each game by Darby Middle School's football team are 21, 35, 14, 17, 28, 14, 7, 21, and 14. If they score 9 points on there next game, how will it effect the mean?

Match the definition with the correct Measure of Central Tendency:

the number or numbers that appear most often