SAT Probability and Statistics Practice

A cake recipe calls for 1.5 cups of milk and 3 cups of flour. Seth made a mistake and used 5 cups of flour. How many cups of milk should he use to keep the proportions correct?

• 2.5 cups milk
• 1.75 cups milk
• 2 cups flour
• 2.25 cups milk

12 ounce shampoo bottle lasts Mike 16 weeks.  How long would you expect an 18-ounce bottle of the same brand to last him?

• 24 weeks
• 6 weeks
• 30 weeks
• 20 weeks

About 13 out of 20 homes have a personal computer.  On a street with 60 homes, how many would you expect to have a personal computer?

• 7 homes
• 39 homes
• 73 homes 
• 40 homes

A 6-ounce package of fruit snacks contains 45 pieces.  How many pieces would you expect in a 10-ounce package?

• 25 pieces
• 35 pieces
• 75 pieces
• 70 pieces

Of the 50 fish John caught from the lake, 14 were trout.  The estimated population of the lake is 7,500.  About how many trout would you expect to be in the lake?

• 2,100 trout
• 2,000 trout
• 2,200 trout
• 2,300 trout

Find the Mean of the Data Set:

7, 8, 3, 4, 8

• 7

• 6

• 5

• 4

Find the Median in the Data Set:

7, 8, 3, 4, 8

• 7

• 8

• 4

• 3

A sixth number will be added to the list. What must it be in order for the mean to be 12?

7, 16, 11, 12, 10, ______

• 16

• 7

• 11

• 12

Hot dogs eaten by contestants

According to the box-and-whisker plot, what was the median number of hot dogs eaten in the hot dog eating contest?

• 3

• 15

• 7

• 18

What is the mean?