AP Statistics Review

One advantage of histograms is that they may be used for large data sets.

• True

• False

Tags

CCSS.HSS.ID.A.1

If the upper tail of a distribution stretches out farther than the lower tail, the distribution is negatively skewed.

• True

• False

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

CCSS.HSS.ID.A.1

In a scatter plot, both the horizontal and vertical axes must be set at zero.

• True

• False

The mean is the middle value of an ordered data set.

• True

• False

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

One disadvantage of using the mean as a measure of center for a data set is that its value is affected by the presence of even a single outlier in the data set.

• True

• False

Tags

CCSS.HSS.ID.A.3

The variance is the positive square root of the standard deviation.

• True

• False

When the histogram of a data set is closely approximated by a normal curve, the standard deviation and the interquartile range are very close to equal on average.

• True

• False

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.4

Correlation coefficient, r, does not depend on the units of measurement of the two variables.

• True

• False

Tags

CCSS.HSS.ID.C.8

CCSS.HSS.ID.C.9

If r = 1 , the standard deviation of y is equal to the standard deviation of the residuals.

• True

• False

Tags

CCSS.HSS.ID.C.8

The standard deviation about the least squares line is roughly the typical amount by which an observation deviates from the least squares line.

• True

• False

Tags

CCSS.HSS.ID.C.7