Mean, Median, Mode, Range, Interquartile Range

Find the median of these numbers:

2, 5, 4, 3, 7, 5, 5,

• 4

• 5

• 3

• 6

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

• 87.9

• 87.57

• 87.95

• 89

What is the RANGE of the following data set?

4, 5, 6, 8, 9, 10, 11

• 5

• 6

• 7

• 8

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

Find the median from the list of numbers:

60, 58, 52, 48, 60, 67

• 58

• 59

• 60

• 118

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

What is the range?

• average
• biggest-smallest
• the middle #
• # happening the most

In order to find the median, the very first thing you must do is to..

• find the difference between biggest and the smallest number.

• find the middle number

• list the numbers from least to greatest

• find the most repeated number

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

Quartiles break the data set into _____ equal parts each representing 25% of the data.

• 1

• 2

• 3

• 4