Comparing Central Tendency

The number of miles that Jenna cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the mean number of miles Jenna cycled?

• 31

• 36

• 39

• 41

To find the _________ you add up all the numbers and then divide by how many numbers you have.

• Mean

• Median

• Mode

• Range

In the last 5 games, Kevin Durant scored 22, 22, 18, 12, and 21 points. What is Durant's Mean (Average) score per game?

•  19 points per game

• 95 points per game

• 18.6 points per game

• 22 points per game

What is the mode of 16,18,20,21,21,21,32,40?

• 21

• 56

• 7

• 18

The chart on the left shows the statistics on test scores in period 1 and period 5. Which is true?

• The average test score is higher for period 5, but the data is more spread out.

• The average test score is higher for period 1, but the data is more spread out.

• The average test score is higher for period 5, and the data is more consistent (closer to the mean) than period 1.

• The average test score is higher for period 1, and the data is more consistent (closer to the mean) than period 5.

What conclusion can Ms. Long make about the performance of her first- and second-period classes?

• The first-period class had a higher median score than the second-period class.

• The second-period class scores had a higher mean than the first-period class scores.

• The first-period class scores had a greater range than the second-period class scores.

• The second-period class scores had a greater mean absolute deviation than the first-period class scores.

The median of Set A is ​ (a)   the median of Set B.

The mode of Set B is ​ (b)   the mode of Set A.

Set A's mean is ​ (c)   Set A's median.

• greater than

• less than

• equal to

Match the following vocabulary with the definitions

• Range

• the difference between the largest and smallest values in a data set

• Median

• the most frequently occurring value(s)

• Mean

• the average of values, sum of all values divided by how many values

• Mode

• the middle value, when the data is ordered from least to greatest

The mean of Data Set A is ​ (a)   the mean of Data Set B.

The median of Data Set A is ​ (b)   the median of Data Set B.

• 3 less than

• 1 more than

• 1 lessthan

• 2 more than

• 2 less than

• 3 more than

• 4 more than

• 4 less than

• equal to

Which statement is correct?

• Class 1 has the larger mean and standard deviation

• Class 2 has the larger mean and standard deviation

• Class 1 has the larger mean, but the smaller deviation

• Class 2 has the larger mean, but the smaller deviation