Statistics and Probability Review

Lizzy had test scores of:   72, 94, 108, 60
What is the RANGE of her test scores?

• 12
• 72
• 48
• 98

Tags

CCSS.7.NS.A.1C

The mode score on the 6th grade math test was 94. Which of these interpretations must be correct?

• 99 was the highest score on the test.

• More students received a 94 than any other score

• No student scored below a 50

• A score of 91 was slightly below average.

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

In order to find the median, the data must be sorted from least to greatest first.

• True
• False

Tags

CCSS.6.SP.B.5C

The number of miles that Kiki cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Kiki cycled?

• 24
• 36
• 39
• 52

Tags

CCSS.6.SP.B.5C

The cost of four cell phones are $345, $400, $110, and $640.
What is the median cost

• $330
• $390
• $372.50
• $375

Tags

CCSS.6.SP.B.5C

Mary read six books in January, four books in February, and eight books in March.What was the average number of books read each month? __________

• 18
• 6
• 14

Tags

CCSS.6.SP.B.5C

Calculate the mean.

2, 9, 10, 6, 8

• 8

• 4

• 7

• 22

Tags

CCSS.6.SP.B.5C

Find the IQR (interquartile range) using the following information.

Minimum: 77

Lower Quartile: 79.5

Median: 86.5

Upper Quartile: 90.5

Maximum: 99

• 86.5

• 22

• 90.5

• 11

Tags

CCSS.6.SP.B.5C

What is the interquartile range of the data set below?

3, 5, 6, 6, 7, 8, 9

• 3

• 6

• 2

• 8

Tags

CCSS.6.SP.B.5C

What is the first step when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the distances

• Find the mean of the data

Tags

CCSS.6.SP.B.5C