Math 6

Probability and Statistics

A clerk recorded the number of pairs of jeans sold each day at a store. The data are displayed on the stem-and-leaf plot. Which of the following statements is true according to the

data in the stem-and-leaf plot?

The number of ..

.

The stem-and-l..

.

The median fo

r...

The mode fo

r t...

25% 25%25%25%

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A. The number of pairs of jeans sold each day was between 0 and 8.

B. The stem-and-leaf plot displays 26 days of sales.C. The median for the data is 25.D. The mode for the data is 25.

What is missing from the box-and-whisker plot?

Median

Range

Upper q

uartile

Lower q

uartile

25% 25%25%25%

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A. MedianB. RangeC. Upper quartileD. Lower quartile

Look at the table. What is the range for the times listed in the table?

25% 25%25%25%

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A. 4 minB. 9 minC. 10 minD. 12 min

Look at the table. The songs on Seth’s CD player play randomly. What is the probability that the next song

played will be by the artist Sound Off ?

1/12

3/12

3/24

1/7

25% 25%25%25%

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A. 1/12B. 3/12C. 3/24D. 1/7

Which statement is false?

25% 25%25%25%

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A. A set of data always has a mode.

B. A set of data may have exactly one mode.

C. A set of data may have more than one mode.

D. The mode is the piece of data that occurs most frequently.

What is the median for this set of data?{217, 243, 203, 206, 230, 195, 243}

206217

220243

25% 25%25%25%

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A. 206B. 217C. 220D. 243

Look at the table. According to the table, what was the median number of customers?

25% 25%25%25%

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A. 115B. 126C. 131D. 172

Which is most likely the range for the data plotted in the box-and-whisker plot?

6 14 21 29

25% 25%25%25%

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A. 6B. 14C. 21D. 29

The data below lists the number of pages in each book Harry read last summer. What is the median of the data?

225, 157, 144, 312, 281, 276, 166

168223

225312

25% 25%25%25%

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A. 168B. 223C. 225D. 312

According to the table, what is the mean number of students enrolled in a class?

25% 25%25%25%

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A. 7B. 10C. 11D. 50

If Mark randomly chooses 1 of these same-sized pastries from the box, what is the probability that it will have a cream cheese filling?

25% 25%25%25%

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A. 25%B. 30%C. 43%D. 60%