Expected Value
Authored by Mr. Briggs
Mathematics
10th Grade
CCSS covered
Used 2+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A coin is flipped 3 times. If you get tails once you get $5, tails twice you get $15, and tails on all three flips you get $40. What is the expected amount of money you will get?
Tags
CCSS.HSS.MD.A.2
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
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.HSS.MD.B.5A
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Find the mean (expected value) of the probability distribution.
85
83.2
87.1
84.4
Tags
CCSS.HSS.MD.A.2
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
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. Is this a fair game?
yes
no
Tags
CCSS.HSS.MD.B.6
CCSS.HSS.MD.B.7
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
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.HSS.MD.B.5A
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Choose an American household at random. What is the expected number of cars for that household?
Tags
CCSS.HSS.MD.A.2
7.
MULTIPLE CHOICE QUESTION
3 mins • 12 pts
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.
Tags
CCSS.HSS.MD.A.2
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