Finding the Mean

Find and solve each mathematical expression with its simplified form

• 4

• 6

• 5

Find and solve each mathematical expression with its simplified form

• 4

• 6

• 5

Find and solve each mathematical expression with its simplified form

• 4

• 6

• 5

What is the mean of the data set?

• 5

• 6

• 7

• 8

What is the mean of the data set?

17, 24, 26, 13

• 4

• 13

• 20

• 80

Margo has 15 pounds of clay, Tim has 10 pounds of clay, Tray has 13 pounds of clay, Lila has 14 pounds of clay, and Jerry has 13 pounds of clay. How can they redistribute the clay so that they all have the same amount? Check all that apply.

• Margo should give away 2 pounds of clay.

• Tim should be given 1 pound of clay.

• Lila should give away 1 pound of clay.

• When fairly balanced everyone will have 14 pounds of clay.

• When fairly balanced everyone will have 13 pounds of clay.

George sold 18, 22, 26, 12, 25, 20, and 19 cars per month over the past seven months. He followed the steps below to determine the number of cars he needs to sell in the next month to have a mean number of sales per month of 24.

Step 1: Find the total cars needed to have a mean of 24: 24 × 7 = 168; Step 2: Find the total cars sold: 18+22+26+12+25+20+29=142; Step 3: Subtract the total cars sold from the total cars needed: 168-142=26. Step 4: State the answer: George needs to sell 26 cars next month. Where did George make his first mistake?

• Step 1

• Step 2

• Step 3

• Step 4

Ella’s test grades in her history class are 89, 94, 82, 84, and 98. What score must Ella make on her next test to have a mean test score of 90?

__ points are needed on the test

The Wing Station wants the average price of the lunch meal deals to be $8. What does the price of the chicken wings need to be for this to happen?

• $6

• $7

• $8

• $9

Maria’s phone bills were $95, $67, $43, and $115. What was the mean, or average, of her phone bills?

• $55

• $72

• $80

• $105