Range and Interquartile Range Mean Median Mode

What is the RANGE of the following data set? 4, 5, 6, 8, 9, 10, 11

• 5

• 6

• 7

• 8

What is the IQR of the following Data Set:

32, 35, 35, 36, 39, 40, 44, 48, 49

• Q1: 35

  Q2: 39

  Q3: 46

  IQR: 46 - 35 = 11

• Q1: 35

  Q2: 39

  Q3: 44

  IQR: 44 - 35 = 9

• Q1: 35

  Q2: 39

  Q3: 48

  IQR: 48 - 35 = 13

• Q1: 35

  Q2: 39

  Q3: 46

  IQR: 39 - 35 = 4

Mary recorded the low temperature each night for 14 days. Her results are listed here: 50, 45, 65, 71, 33, 35, 44, 45, 36, 44, 44, 51, 44, 45

What is the mode of this data?

• 44

• 71

• 33

• 38

Rory has been keeping track of his video games scores in a table. Which statement about the data is true?

• The median is 1,125 and the range is 1,700 points.

• The median is 1,200 and the range is 1,700 points

• The median is 1,200 and the range is 2,475 points

• The median is 1,725 and the range is 3,675 points

Numbers that are used to describe the center of a set of data.  These measures include the mean, median, and mode.

• Interquartile Range

• Measure of Variation

• Measure of Center

• Interval

Which number is not the mean, median, mode, or range of the data set 4, 3, 15, 11, 3, 8, 7, 5?

• 3

• 7

• 12

• 11

Find the range of the data set
1.43,1.05,34,56,89,1.1

• 87.9

• 87.57

• 87.95

• 89

The prices at several different stores for a pair of shoes are shown below.
$78, $79, $81, $82, $83
Two days later, another store has the same shoes on sale for $65. How does the new price affect the data?

• Only the range was affected.

• The median increased, and the range increased.

• The mean increased, and the range increased.

• The mean decreased and the range increased.

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

Calculate the interquartile range of the following data17, 18, 18, 19, 20, 21, 21, 23, 25

• 3

• 4

• 5

• 8