Data Distribution

Given the following distributions, which is skewed to the left?

• Red

• Purple

• Black

Given the following distributions, which is skewed to the right?

• Red

• Purple

• Black

Gabriella’s quiz grades are shown below.
88, 92, 92, 96, 98
Gabriella scored a 20 on her sixth quiz. What effect does this score have?

• The low score causes the median to increase.

• The low score causes the median to decrease.

• The low score causes the mean to increase.

• The low score causes the mean to decrease.

The prices at several different stores for a pair of shoes are shown below.
$78, $79, $81, $82, $83
Two days later, another store has the same shoes on sale for $65. How does the new price affect the data?

• Only the range was affected.

• The median increased, and the range increased.

• The mean increased, and the range increased.

• The mean decreased and the range increased.

Given a set of skewed data, which is an appropriate measure of center?

• Mean

• Median

• Mode

Given a set of skewed data, which is an appropriate measure of spread?

• Mean

• Median

• Standard Deviation

• Interquartile Range (IQR)

Select the true statement.

• There is a cluster of data between 0 and 2

• There is a gap at 7

• There is an outlier at 8

• The distribution is clearly skewed left

The data for the latest test is shown in this graph. Select the true statement.

• The data has a gap a 74 and 76

• The data is symmetrical

• The data is skewed right

• The data is skewed left

Which statement best describes this distribution?

• Symmetrical or "Bell-Shaped"

• Symmetrical with a U shape

• Skewed Left

• Skewed Right

Which statement is true regarding the distribution of this data?

• There is a peak at the interval 25-49

• There is a gap at 100-124

• There is a peak at 75-99

• It is symmetrical