Statistics One Variable

Choose the correct statement about the histogram.

• Most people pay $14.01-$19 for lunch.
• People like to eat lunch out.
• Most people pay more than $9 for lunch.
• Most people do not like $10 lunches.

Choose the correct statement about the histogram.

• Most families have less than 9 pets.
• Most families have between 0 and 2 pets.
• All families love pets.
• Most families have more than 9 pets.

Choose the correct statement about the histogram.

• The best score on this exam was 100.
• Most students scored between 60 and 80.
• Most students scored less than 80 on the exam.
• Most students studied for the exam.

Find the mean of the data set:  18, 36, 24, 36, 30, and 36.

• 26
• 27
• 36
• 30

Find the mean, median, mode, and range of the data set.

• The mean is 217.5 books; the median is 219 books; the mode is 217 books; and the range is 7 books.
• The mean is 219 books; the median is 217 books; the mode is 217.5 books; and the range is 7 books.
• The mean is 219 books; the median is 217.5 books; the mode is 217 books; and the range is 7 books.
• The mean is 219 books; the median is 217.5 books; the mode is 7 books; and the range is 217 books.

Find the mean of the data:
17, 27, 26, 2, 1, 21, 13, 16, 19, 5, 7

• 10.5
• 21
• 14
• 6

Find the median of the data:
53, 62, 30, 30, 64

• 53
• 52
• 30
• 48

Find the mode(s) of the data:
92, 97, 92, 96, 98, 94

• 98, 92
• 94
• 92
• no mode

Find the range of the data:
Ages of the players on a softball team:  36, 44, 37, 41, 35, 42, 38, 43, 41, 38

• 44
• 6
• 35
• 9

For a set of data, where Q₁ = $30, Q₂ = $55, and Q₃ = $80.  Calculate the interquartile range.

• $15
• $50
• $55
• $25