Measures of Central Tendency

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is Roger's median score?

• 127

• 155

• 156

• 193

• spread
• mean
• outlier
• median

What is the mode of the scores?

• 24

• 14

• 34

• 30

What is the average height of the following students whose height are 6.5, 5.3, 3.4, 4, and 5.5?

• 4.82

• 5.93

• 4.94

• 4.52

The scores shown below were received by four science teams named A, B, C, and D in an examination. Each team reported an "average" of 90. Which of the following is true for the measure of central tendency that was used by the team?

• Team D used mean

• Team C used mode

• Team A used mean

• Team B used median

The data set below has an outlier of 42.
2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42
What effect does removing the outlier have on the distribution of the data?

• The mean will decrease

• The median will decrease

• The mean will increase

• The median will increase

Which statement is best supported by the graph?

• The shape of the graph is symmetrical, so the mean and median are equal.

• The shape of the graph is asymmetrical, so the mean and median are equal.

• The shape of the graph is symmetrical , so the mean an median are NOT equal.

• The shape of the graph is asymmetrical, sot eh mean and median are NOT equal.

Given the following data set
6, 9, 12, 14, 7, 9, 6, 8, 25, 12, 14
What is the mean of the data set without the outlier(s)?

• 9.2

• 9.7

• 11.1

• 12.4

Describe the shape of the graph.

• Skewed right

• Skewed left

• Uniform

• Normal

The ____________ is the measure of central tendency that represents the middle number in a set of data.

• Mode

• Average

• Principal

• Median