Mean Calculation

Calculate the mean of the following numbers: 10, 15, 20, 25, 30

• 28

• 22

• 18

• 20

Tags

CCSS.6.SP.B.5C

A student scored 85, 90, 88, and 92 on four tests. What is the mean score?

• 88.75

• 89.25

• 87.5

• 91.2

Tags

CCSS.6.SP.B.5C

In a class, the mean height of the students is 150 cm. If a student with a height of 180 cm joins the class, how will this affect the mean height?

• The mean height will increase.

• The mean height will remain the same.

• The mean height will be 330 cm.

• The mean height will decrease.

Find the mean of the numbers 5, 10, 15, 20, 25, 30, 35

• 22

• 18

• 28

• 20

Tags

CCSS.6.SP.B.5C

Jean loves to go bird watching. One day, she saw 7 birds. The next day, she saw 11 birds. The next day, she saw no birds. What is the average number of birds Jean saw each day?

• 3

• 4

• 6

• 9

Tags

CCSS.6.SP.B.5C

If the mean of 24 numbers is 25, and one number in the set is 30, what is the sum of the other numbers?

• 525

• 570

• 420

• 625

Tags

CCSS.6.SP.B.5C

A store sold 20, 25, 30, and 35 items in four days. What is the mean number of items sold per day?

• 22.5

• 28.5

• 32.5

• 27.5

Tags

CCSS.6.SP.B.5C

The mean age of a music group is 15 years. If a new child, aged 12, joins the group, how does it affect the mean age?

• The mean age will remain the same.

• The mean age will decrease.

• The mean age will increase.

• The mean age will become negative.

Find the mean of the following temperatures: 12.5°C, 13.2°C, 16.8°C, 18°C, 19.5°C

• 15°C

• 17°C

• 16°C

• 19°C

Tags

CCSS.6.SP.B.5C

If the mean of three numbers is 40, and one number in the set is 50, what is the sum of the other numbers?

• 10

• 20

• 70

• 90

Tags

CCSS.6.SP.B.5C