Measures of Center and Comparing

Which statement comparing the modes to the ranges is true?

• The modes differ by 40 and the ranges differ by 40.

• The modes differ by 20 and the ranges differ by 20.

• The modes differ by 40, but the ranges differ by 20.

• The modes differ by 20, but the ranges differ by 40.

What is the ratio of the difference in the means to the Mean Absolute Deviation of Team B?

• 0.09

• 0.15

• 0.25

• 0.65

Which measures of center or variability are greater than 5 degrees? Select three choices.

• the mean of this week’s temperatures

• the mean of last week’s temperatures

• the range of this week’s temperatures

• the mean absolute deviation of this week’s temperatures

• the mean absolute deviation of last week’s temperatures

Add Scores: 76+62+94+80=312

Divide the sum of the scores by 4: 312/4 = 78 Add the difference between the mean and each score: (76-78)+(62-78)+(94-78)+(80-78)=0

Divide by 4: 0/4 = 0

• Step 1

• Step 2

• Step 3

• Step 4

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

• 24

• 36

• 39

• 52

Find the mean.
90, 100, 95, 85, 60, 80

• 85

• 84

• 86

• 90

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Ervin's scores?

• 193

• 127

• 60

• 66

What is the median of this set of data?
10, 90, 80, 60, 50, 40, 70, 30, 20, 100

• 50

• 60

• 55

• 45

Find the mean of these numbers:
5,11,2,12,4,2

• 4.1

• 6

• 4.5

• 4

• Kim's scores are more consistent.
• Caleb's scores are more consistent.
• Both scores have the same consistency!
• Not enough information is provided.