Mean Median and Midrange

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

• 193

• 127

• 60

• 66

Which of the numbers below represent the mode(s) of this data set?

67, 67, 74, 95, 98, 98, 99, 102

• 102

• 67

• 98

• 90.4

What is the median of this set?

67, 74, 95, 98, 98, 99, 102

• 90.4

• 35

• 92

• 98

The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

• 5
• 6
• 9
• 11

The number of miles that Jenna cycled each week for a 8-week period is shown:

36, 42, 28, 52, 48, 36, 31, 38

What is the median number of miles Jenna cycled?

• 24

• 36

• 37

• 38

The mean number of minutes Vivian spent on homework is 35. On Monday it took her 30 minutes to complete. On Tuesday it took her 28 minutes to finish. On Wednesday, she worked for 50 minutes on homework. How many minutes did she work on Thursday?

• 27
• 36
• 32
• 29

Brooke received the math quiz scores listed below:
90, 88, 65, 95, 83, 97
Her teacher decided to drop the lowest score. If the mean is rounded to the nearest whole number, how will dropping the lowest score affect the mean of her quiz scores?

• The mean of her quizzes will decrease by 2 points.
• The mean of her quizzes will increase by 1 point.
• The mean of her quizzes will decrease by 1 point.
• The mean of her quizzes will increase by 5 points.

What is the definition of the range?

• The average

• The number that occurs the most

• The middle number

• The difference of the largest and smallest numbers

What is the definition of the mean?

• The average

• The middle number

• The difference between the highest and lowest numbers

• The number that occurs the most

The heights of some students are given.

158cm 172cm 164cm

164cm 167cm 159cm

What is the range of the heights?

• 13cm

• 14cm

• 164cm

• 330cm