Statistics Review (10)

Four data sets are shown. Which data set has the largest standard deviation?

• Set 1

• Set 2

• Set 3

• Set 4

The list below shows the number of hits six players on a baseball team had during a season.

24, 18, 36, 40, 28, 22

A seventh player on the team had 63 hits. Which measure would be affected the most by including the seventh player?

• mean

• median

• standard deviation

• interquartile range

A set of nine data points is shown below.

8, 11, 12, 10, 9, 7, 5, 3, 9

Which statement is true if a tenth data point of 45 is added to the data set?

• The mean and median will both increase

• The mean will increase and the median will decrease.

• The mean will increase and the median will remain the same.

• The mean and median will both decrease.

The data shows the test scores of four different classes.

Algebra: {87, 91, 64, 88, 74}

Geometry: {98, 86, 84, 91, 79}

Statistics: {87, 72, 84, 88, 91}

Pre-Algebra: {63, 82, 78, 71, 74}

Which class had the smallest interquartile range?

• Algebra

• Geometry

• Statistics

• Pre-Algebra

Tags

CCSS.6.SP.B.5C

Ten customers in two stores were asked to rate the service on a scale of 1 to 10. The data from each store is listed below.

Store 1: 2, 2, 4, 5, 6, 7, 7, 8, 10, 10

Store 2: 3, 4, 4, 5, 6, 6, 7, 8, 8, 8

Based on this data, which statement is true?

• Store 1 has a larger mean and smaller standard deviation than Sore 2.

• Store 2 has a larger mean and a smaller standard deviation than Store 1.

• Store 1 has a larger mean and standard deviation than Store 2.

• Store 2 has a larger mean and standard deviation than Store 1.

What is the maximum value?

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What percentage of the data is between 90 and 140?

• 25 %
• 50%
• 75%
• 100%

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What is the median of the data?

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What is the Intergquartile range of the box-plot with the lesser IQR?

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Gabriella’s quiz grades are shown below.
88, 92, 92, 96, 98
Gabriella scored a 20 on her sixth quiz. What effect does this score have?

• The low score causes the median to increase.
• The low score causes the median to decrease.
• The low score causes the mean to increase.
• The low score causes the mean to decrease.