Unit 5 Vocabulary

What word best describes the AVERAGE?

• range

• median

• mean

• variance

Identify the outlier for the given data?

23, 34, 27, 7, 30, 26, 28, 31, 34

• 34

• 7

• 32

• 23

A numerical summary of how tightly the values are clustered around the center.

• shape

• spread

• range

• mode

A measure of variability that describes an average distance of every score from the mean.

• variance

• IQR

• standard deviation

• gap

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

• mean

• median

• mode

• range

To find the ______ you put all numbers in order from least to greatest and then take the largest number minus the smallest number.

• mean

• median

• mode

• range

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 mean will increase

• the median will increase

• the median will decrease

What is an outlier?

• A value that is much less or much greater than the other values in a data set.

• The difference between the upper and lower quartiles of a data set.

• The mean of the distances from each data value in a set to the mean of a set.

• The difference between the greatest and least numbers in a data set.

What measure of center is most affected by an outlier?

• median

• range

• mean

• IQR

What would be the best measure of center for the data set?

5,6,7,3,4,4,5,3,2,6

• median

• mode

• range

• mean