Unit 4: Mean

Which of the following is/are the same as the mean?

• Average

• Expected Value

• Median

Find the mean of the following:

10 13 4 13 12 25 7

Tags

CCSS.6.SP.B.5C

If I was trying to find the mean of the following, what would I divide by?

10 13 4 13 12 25 7

• 6

• 7

• 10

• 4

Tags

CCSS.6.SP.B.5C

I currently have a 90 test average. How would each of the following scores on my next test affect my average?

Reorder from Least to Greatest

• Increases the average by a little

• 89

• Stays the same

• 100

• Increases the average

• 90

• Brings down the average

• 92

• Barely lowers the average

• 75

Tags

CCSS.4.NBT.A.2

Leo averaged an 85 for his first three tests. if he gets a 97 on his next test, what would be his new average?

Tags

CCSS.6.SP.B.5C

Kevin Durant scored 35, 23, 19, 27, and 30 over the first 5 games of February. If he wants to have an average of 30 points, how many points does he need to score in his next game?

Tags

CCSS.6.SP.B.5C

When calculating the expected value from a frequency table with intervals, which value is typically used to represent each interval?

• The range

• The frequency

• The midpoint

• The upper boundary

• The lower boundary

Tags

CCSS.HSS.MD.A.2

If you had to find the expected value from a frequency table that used intervals or ranges (ex. $0 - $5 or $5 - $10), what would be the midpoint for the interval $10 to $15?

• $10

• $15

• $13

• $2.50

• $12.50

Tags

CCSS.HSS.MD.A.2

What is the midpoint of the interval $20 to $30 in a grouped frequency table?

• $30

• $25

• $20

• $15

• $22.50

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

If a frequency table has the interval $5 - $9, what is the correct midpoint to use for calculations?

• $9

• $7

• $6.50

• $5

• $8

Tags

CCSS.6.SP.B.5C