Topic 11 Statistics Quiz Review

The prices of 12 different types of cereal, rounded to the nearest dollar, are shown.

Cereal Brand X costs $3. Which description of Brand X is most accurate?

• Brand X costs more than the median price of the cereals in the plot.

• Brand X is an outlier for the data set.

• The price of Brand X is the same as the price that was recorded most often.

• Brand X costs about a dollar less than the price that was recorded most often.

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CCSS.6.SP.B.5C

CCSS.HSS.ID.A.3

The histogram displays the ages of 50 randomly selected users of an online music service. Based on the data, advertising on the service is more likely to reach:

• People younger than 30

• People 30 or older

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CCSS.7.SP.A.2

The box plot shows the ages of people at a movie screening. What percent of the people are between 20 and 37 years old?

• 25%

• 50%

• 75%

• 100%

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CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

A reporter wants to interview an employee who works fewer than 30 hours per week. Is the reporter more likely to find such a person at Company A or at Company B?

• Company A

• Company B

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CCSS.7.SP.B.4

A scientist measures the heights of sunflower plants. The histogram shows the results. Which is the correct statement?

• The data are skewed left, so the mean height is greater than the median height.

• The data are skewed right, so the median height is greater than the mean height.

• The data are skewed left, so the median height is greater than the mean height.

• No conclusion can be made about the relationship between the median height and the mean height based on the histogram.

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CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

Using the data from Item 5, are there more plants with height h in the range 20 in. ≤ h < 40 in. or in the range h ≥ 40 in.?

• There are more plants with height 20 in. ≤ h < 40 in.

• There are more plants with height h ≥ 40 in.

• The number of plants is the same in both ranges.

• There is not enough information to determine.

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CCSS.6.SP.B.4

CCSS.HSS.ID.A.1