Unit 10 STAAR Practice

The resting pulse was recorded for 15 girls in gym class before they began exercising. The data is

represented by the dot plot.

Which statement is NOT supported by the data in the dot plot?

• The slowest pulse rate of the girls was 78 beats per minute.

• The fastest pulse rate of the girls was 84 beats per minute.

• The median pulse rate was 82 beats per minute.

• Six of the girls had a pulse rate slower than 81 beats per minute.

The histogram shows the amount Larry spent on school lunches last month.

Which table of data was used to create the histogram?

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The histogram shows the amount Darren spent on school lunches last month.

Which statement is true based on the data in the histogram?

• The range of the data is $1.83.

• The center of the data is contained in the $2.42 to $2.87 bar.

• He spent more than $2.41 on more days than he spent less than $2.41.

• The values contained in a bar have a range of $0.40.

The resting pulse was recorded for 15 girls in gym class before they began exercising. The results

were:

78, 78, 79, 80, 80, 81, 82, 82, 82, 83, 83, 83, 84, 84, 84

Which dot plot best represents these data?

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The stem-and-leaf plot shows the ages of museum visitors last Monday during the morning hours.

Which statement is supported by the data in the stem-and-leaf plot?

• The youngest museum visitor during the morning hours was 20 years.

• There were more museum visitors that were 40-55 years old than 21-38 years old.

• The median age of the museum visitors during the morning hours was 38 years.

• The spread in the ages of the museum visitors during the morning hours was 33 years.

The heights of 11 basketball players, in inches, are given below.

67, 68, 69, 70, 70, 70, 72, 73, 73, 75, 75

Which box plot best represents the data above?

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The heights of 11 basketball players, in inches, are represented by the box plot below.

Which statement is true based on the data in the box plot?

• The range of the data is 9 inches.

• The center of the data is 70.5 inches.

• The tallest player in this group has a height of 74 inches.

• The shortest player in this group has a height of 67 inches.

The number of cars in a parking lot at noon each day for two weeks is shown in the table below.

Which stem-and-leaf plot best represents the information in the table?

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The box plot shows the number of homework problems Will had daily in math the last six weeks.

Which statement is NOT supported by the data in the box plot?

• The least number of homework problems Will had was 12.

• The most number of homework problems he had was 20.

• The median number of homework problems was 16.

• The spread firm 16 to 21 problems is greater than the spread from 12 to 16 problems.

The following box plot was created to represent data collected about the number of hours students

spent on the Internet a week.

The box plot best represents which set of data?

• 8, 8, 10, 10, 10, 15, 14, 13, 6, 14, 8, 11, 20

• 8, 8, 10, 10, 10, 15, 10, 13, 5, 15, 9, 11, 6

• 9, 7, 5, 10, 10, 15, 10, 13, 6, 15, 9, 11, 20

• 8, 8, 7, 10, 10, 15, 12, 13, 6, 21, 9, 11, 8