CCSS.Math.Content.HSS.MD.B.5

Suppose you pay $1.00 to roll a fair die with the understanding you will get $3.00 back rolling a 4 or a 2, and nothing otherwise.  What is the expected amount you win?

• $0.00
• -$1.00
• $1.00
• $3.00

Tags

CCSS.Math.Content.HSS.MD.A.2

CCSS.Math.Content.HSS.MD.A.3

CCSS.Math.Content.HSS.MD.B.5

A stockbroker estimates that at the end of the year, there is a 40% chance a stock will be worth $50, a 35% chance it will be worth $60 and a 25% chance it will be worth $70.
What expected value does this broker assign to this stock's end-of-the-year price?

• $58.50
• $60.00
• $62.50
• $65.00

Tags

CCSS.Math.Content.HSS.MD.A.2

CCSS.Math.Content.HSS.MD.B.5

Which option gives the greatest Return on Investment?

• Option I
• Option II
• Option III
• It doesn't make a difference

Tags

CCSS.Math.Content.HSS.MD.A.2

CCSS.Math.Content.HSS.MD.B.5

Find the expected value

• Loss of $0.875
• Loss of $2.125
• Win of $1.875
• Win of $3.125

Tags

CCSS.Math.Content.HSS.MD.A.2

CCSS.Math.Content.HSS.MD.A.3

CCSS.Math.Content.HSS.MD.B.5

A car dealer buys hybrids for $21,000 each and sells them for $24,500 each. Find his expected weekly profit.

• $2,380
• $5,355
• $8,109
• $37,485

Tags

CCSS.Math.Content.HSS.MD.A.2

CCSS.Math.Content.HSS.MD.B.5

HINT: Read carefully! And think about the TOTAL amount of money being gained or lost in each situation!

• $275
• $625
• $2,750
• $6,250

Tags

CCSS.Math.Content.HSS.MD.A.2

CCSS.Math.Content.HSS.MD.B.5

A student group sells 500 raffle tickets for $2 each. At the drawing the top prize will be a gift certificate for $100. Second prize will be a $50 gift card and there will be five 3rd prizes, each a $20 gift card. Do you expect to win or lose (on average)? How much?

• lose an average of $5.50

• lose an average of $1.50

• win an average of $2.00

• lose an average of $10.00

Tags

CCSS.Math.Content.HSS.MD.A.2

CCSS.Math.Content.HSS.MD.B.5

Expected value is

• an average.

• a predicted value of a game.

• the sum of the values multiplied by their probabilities.

• all of the above.

Tags

CCSS.Math.Content.HSS.MD.A.3

CCSS.Math.Content.HSS.MD.B.5

Eva flips a coin. If she gets heads, she wins $4. If she gets tails, she loses $3. What is her expected value of a coin flip?

• $1

• $0.50

• -$0.50

• $0

Tags

CCSS.Math.Content.HSS.MD.A.2

CCSS.Math.Content.HSS.MD.B.5

A stockbroker estimates that at the end of the year, there is a 40% chance a stock will be worth $50, a 35% chance it will be worth $60 and a 25% chance it will be worth $70.
What expected value does this broker assign to this stock's end-of-the-year price?

• $58.50
• $60.00
• $62.50
• $65.00

Tags

CCSS.Math.Content.HSS.MD.B.5