Statistics

Paisley is a dentist. She needs to report on the average number of cavities that her patients have. The list below shows the number of cavities each patient has. To the nearest hundredth, what is the average number of cavities?

1,0,1,5,6,3,4

• 3.33
• 2.86

• 3
• 3.5

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

• 193
• 127
• 60
• 66

Anh is investigating the heights of a group of students:
158cm     172cm      164cm
164cm     167cm      159cm
 What is the range of the heights?

• 13cm
• 14cm
• 164cm
• 330cm

Hannah wants to find the mean of these numbers:
5,11,2,12,4,2
What is it?

• 4.1
• 6
• 4.5
• 4

What is the mode?

• number that occurs the most

• the average

• biggest - smallest

• the middle number

Find the mean of these numbers:

5,11,2,12,4,2

• 4.1

• 6

• 4.5

• 4

What is the mean?

• number that occurs the most

• the number in the middle

• biggest-smallest

• the average

The mode score on the Mr. Ro's 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.

1, 2, 3, 4, 7, 7, 7
The median is

• 4
• 7
• 1
• 2

The range is...

• greatest number minus the smallest number

• the one that occurs the most

• the average