Expected Value Practice

Name a situation in real life that you could use expected value on.

• carnival games
• sports
• placing bets
• all of the above

Tags

CCSS.HSS.MD.B.5B

Is your expected value always going to be what happens in real life?

• yes
• no

Tags

CCSS.HSS.MD.A.2

Choose an American household at random. What is the expected number of cars for that household?

• 1.75
• 1.84
• 2.00
• 2.50

Tags

CCSS.HSS.MD.A.2

In a certain community, 30% of households have 1 child, 43% have 2 children, and 27% have 3 children. If a household is selected at random, what is the expected number of children in that household? HINT: A Probability table may be helpful.

• 2.00
• 2.13
• 1.97
• 1.27

Tags

CCSS.HSS.MD.A.2

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 value of this game?

• 0

• -1

• 1

• 3

Tags

CCSS.HSS.MD.B.5A

You pick a card from a deck.  If you get a face card, you win $5.  If you get an ace, you win $30 plus an extra $60 for the ace of hearts.  For any other card you win nothing. Find the expected value.

• 5

• 3.85

• 4.04

• 4.62

Tags

CCSS.HSS.MD.B.5A

A game consists of rolling a colored die with three red sides, two green sides, and one blue side. A roll of a red loses. A roll of green pays $2.00. A roll of blue pays $5.00.   The charge to play the game is $2.00. What is the expected value

• 0

• -.5

• .67

• -1.5

Tags

CCSS.HSS.MD.B.5A

Suppose you buy a ticket for $6 out of a lottery of 1000 tickets where the prize for the one winning is to be $800. What is the expected value of this scenario?

• 800 

• -6.50

• -6

• -5.20

Tags

CCSS.HSS.MD.B.5A

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?

• .5

• 7

• 12

• 0

Tags

CCSS.HSS.MD.B.5A

James Harden makes a 3-pointer 37% of the time. What is his expected value on a 3-point shot?

• 1.11 points

• 111 points

• 0.37 points

• 0.97 points

Tags

CCSS.HSS.MD.A.2