Analyze Data

What is the shape of the distribution?

• Skewed Left

• Skewed Right

• Symmetric

• Uniform

What is the shape of the data?

• symmetrical

• skewed left

• skewed right

• bell curve

Which statement best describes this graph?

• There is a peak at 47.

• There is a cluster around 38-40.

• The mode is 40.

• There is a gap in the data between 39-40.

Given the data set below:
15, 56, 58, 60, 63, 75, 80, 80, 85
How does the outlier affect the distribution of the data?

• The outlier skews the distribution to the left.

• The outlier skews the distribution to the right.

• The outlier makes the distribution more symmetrical.

• The outlier has no effect on the distribution.

What percentage of the data is between 40 and 150?

• 25 %

• 50%

• 75%

• 100%

Find the median, first quartile, third quartile, and interquartile range of the data.

• Median: 54

  First Quartile: 49

  Third Quartile: 67

  IQR: 18

• Median: 54

  First Quartile: 48

  Third Quartile: 69

  IQR: 21

• Median: 54

  First Quartile: 48

  Third Quartile: 69

  IQR: 22

• Median: 54

  First Quartile: 49

  Third Quartile: 69

  IQR: 20

The table shows the points earned by contestants in a competition. Find the range and the interquartile range of the points.

• Range: 15

  IQR: 10

• Range: 15

  IQR: 11

• Range: 15

  IQR: 12

• Range: 15

  IQR: 13

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

• 3

• 4

• 5

• 8

What is the interquartile range (IQR)?

• 4

• 64

• 60

• 8

Describe the center and spread of the data using either the mean and standard deviation or the five-number summary.

• Skewed so use the Mean and Standard Deviation.

  Mean: 50.5

  Standard Deviation: 12.5

• Symmetric so use the Mean and Standard Deviation.

  Mean: 50.5

  Standard Deviation: 12.5

• Symmetric so use the Five Number Summary.

  Minimum: 25

  Quartile 1: 45

  Median: 50

  Quartile 3: 57.5

  Maximum: 76

• Skewed so use the Five Number Summary.

  Minimum: 25

  Quartile 1: 45

  Median: 50

  Quartile 3: 57.5

  Maximum: 76