Statistics Review

Christian has six grades from tests and IXL. They are all weighted equally. If Christian's grades are 100, 96, 96, 88, 70, and 100, what is the current average grade? (Round to the nearest whole number)

• 90

• 91

• 92

• 93

The temperature in Springfield on this date in the last ten years were: 68, 68, 69, 70, 72, 70, 68, 75, 55, 67. What is the average temperature on this date over the last ten years? (Round to nearest whole number)

• 60

• 61

• 68

• 69

1, 2, 2, 3, 7 - What is the mode?

• 1

• 2

• 3

• 7

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Find the Mean Absolute Deviation:  10, 9, 3, 8, 10.  The Mean is 8

• 3
• 5
• 1
• 2

Find the Mean Absolute Deviation:  5, 11, 2, 7, 16.  The Mean is 8.2 

• 3.2
• 2.8
• 1.2
• 4.2

Which mean absolute deviation would have a greater variability or spread?  4.2 or 8.5?

• 4.2
• 8.5

Which mean absolute deviation would be more consistent? 4.2 or 8.5?

• 4.2
• 8.5

Which dot plot shows more consistency? a or b?

• a
• b

What percent of students have a height between 58 inches and 60 inches?

• 25%

• 50%

• 75%

• 100%

Tags

CCSS.6.RP.A.3C

33, 25, 42, 25, 31, 37, 46, 29, 38

What is the upper quartile of the data?

• 37

• 38

• 40

• 46

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5