
CCSS.Math.Content.HSS.MD.A.2
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20 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
In a particular game, a fair die is tossed. If the number of spots showing is either 4 or 5 you win $1, if the number of spots showing is 6 you win $4, and if the number of spots showing is 1, 2, or 3 you win nothing. Let X be the amount that you win.
Which of the following is the expected value of X?
Tags
CCSS.Math.Content.HSS.MD.A.2
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
If the expected value is negative, are you expected to win?
Tags
CCSS.Math.Content.HSS.MD.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If I flip a coin 10 times, how many times should I get heads?
Tags
CCSS.Math.Content.HSS.MD.A.2
4.
MULTIPLE CHOICE QUESTION
15 mins • 12 pts
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?
Tags
CCSS.Math.Content.HSS.MD.A.2
5.
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.Math.Content.HSS.MD.A.2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Find the expected value. READ CAREFULLY!
Tags
CCSS.Math.Content.HSS.MD.A.2
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Find the expected value
Tags
CCSS.Math.Content.HSS.MD.A.2
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