8.6 Choose Appropriate Statistical Measures

A(n) ________ is a value very different from the other values.

• outlier

• center

• median

• mode

Which is a good measure of center when the data contains an outlier?

• mean

• median

• mode

Which is a good measure of center when data is clustered together?

• mean

• median

• mode

Which is a good measure of center if the data is not numeric or doesn't fall in intervals?

• mean

• median

• mode

Which measure of variability should be chosen if mean was a good measure of center?

• MAD

• IQR

Which measure of variability should be chosen if median was a good measure of center?

• MAD

• IQR

What is the mean of the data set: 44, 43, 42, 40, 42, 45, 39, 38, 18.

ONLY TYPE IN A NUMBER

What is the median of the data set: 44, 43, 42, 40, 42, 45, 39, 38, 18.

ONLY TYPE IN A NUMBER

What is the mode of the data set: 44, 43, 42, 40, 42, 45, 39, 38, 18.

ONLY TYPE IN A NUMBER

Data Set: 44, 43, 42, 40, 42, 45, 39, 38, 18.

Is the median or mean the best measure of center? Explain.

Choose the correct measure of center AND explanation.

• Median, because there is an outlier

• Median, because the data is clustered together

• Mean, because there is an outlier

• Mean, because the data is clustered together