Chapter 1 and 2: Finding the mean; Population and Sample

_______ is a part of a group being surveyed.

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

_______ is the entire group of objects or individuals considered for a survey.

• Sample
• Population
• Random Sample
• Quartile

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

The manager of a book store surveys people who buy mystery novels to see if the store should expand its hours.  What is the population?

• People who visit the bookstore.
• People who buy mystery novels.
• Residents of the town
• People who like to read.

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

A student surveys mathematics teachers to get their opinion on teaching.  What is the sample?

• All teachers in the world.
• All teachers within the school.
• All mathematics  teachers in the school.
• All teachers except mathematics teachers.

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

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

• 4.1
• 6
• 4.5
• 4

Tags

CCSS.7.EE.B.3

What is the mean of these numbers?
4,5,5,2,3,3,2,8

• 40
• 24
• 4
• 256

Find the mean:
28, 18, 19, 18, 17

• 20
• 18
• 11
• 19

Find the mean for the following set of numbers: 110, 140, 120, 130, 140, and 110. Remember to find the sum then divide by six.

• 110

• 115

• 120

• 125

Find the mean for the following set of numbers: 44, 56, 48, 53, and 44. Remember to find the sum then divide by five.

• 46

• 47

• 48

• 49

Christian has six grades from tests. 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