Data and Statistics

What is the minimum value?

• 64

• 58

• 66

• 60

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

• To make it look like you know what you are doing

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• D

About how many trees were in the 300-350 cm range?

• 11

• 4

• 30

• 27

Mrs. Jones surveyed the class for the number of letters in their given first name. The data is recorded below.
{5, 8, 6, 5, 4, 9, 8, 7, 6, 3, 8, 7, 5, 6, 7, 8}
What is the interquartile range of the data?

• 2

• 3

• 7

• 8

Which set of data is displayed in the box plot shown below?

• 2,3,4,5,5,6,7,7,8,10

• 2,2,3,4,4,4,5,6,8,10

• 2,3,4,5,5,6,6,6,9,10

• 2,2,4,4,5,5,7,7,8,10

Kaitlyn, Mara, and Paul recorded how many minutes they watched television each day for 2 weeks. Their results are recorded in the table below.
Which statement is true?

• Kaitlyn’s data has a greater interquartile range than Mara’s data.

• Mara’s data has a greater interquartile range than Kaitlyn’s data.

• Paul’s data has a greater interquartile range than Kaitlyn’s data.

• Mara’s data has a greater interquartile range than Paul’s data.

An elevator can hold a maximum of 1,500 pounds. Eight people need to use the elevator. Bill had some measures from the data set of how much each person weighed. Which measure would be most useful to determine if the people can safely use the elevator?

• Mean

• Median

• Mode

• Interquartile Range

Christopher looked at his quiz scores shown below for the first and second semester of his Algebra class. Semester 1: 78, 91, 88, 83, 94 Semester 2: 91, 96, 80, 77, 88, 85, 92 Which statement about Christopher’s performance is correct?

• The third quartile for semester 2 is greater than the third quartile for semester 1.

• The interquartile range for semester 1 is greater than the interquartile range for semester 2.

• The median score for semester 1 is greater than the median score for semester 2.

• The mean score for semester 2 is greater than the mean score for semester 1.

Which statistic can not be determined from a box plot representing the scores on a math test in Mrs. DeRidder’s algebra class?

• the lowest score

• the median score

• the highest score

• the score that occurs most frequently