A1: Unit 1 Review

Select the one TRUE statement.

• Players at school 1 typically spent more time in the weight room than players at school 2.

• The middle half of the data for school 1 has more variability than the middle half of the data for school 2.

• The median hours spent in the weight room for school 1 is less than the median for school 2 and the interquartile ranges for both schools are equal.

• The total number of hours spent in the weight room for players at school 2 is greater than the total number of hours for players at school 1.

Whose scores are more variable?

• Noah

• Jada

• They are the same variability

The standard deviation of Noah's scores is equal to the standard deviation of Jada's scores.

• True

• False

Noah scored better than Jada on every assignment.

• True

• False

Noah's mean is equal to his median.

• True

• False

When is the mean equal to the median?

• Skewed distributions

• Symmetric distributions

When is the standard deviation larger?

• Skewed distributions

• Symmetric distributions

Which is the LEAST affected by outliers?

• Mean

• Median

Is the standard deviation greater for juniors or seniors?

• Juniors

• Seniors

• They are equal standard deviations.

What is the best measure of center for a skewed distribution?

• Mean

• Median