Stats & Applied Math Expected Value Practice

Stats & Applied Math Expected Value Practice

9th - 12th Grade

10 Qs

quiz-placeholder

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Stats & Applied Math Expected Value Practice

Stats & Applied Math Expected Value Practice

Assessment

Quiz

Mathematics

9th - 12th Grade

Hard

CCSS
HSS.MD.A.2, HSS.MD.B.5A

Standards-aligned

Created by

Megan Hammond

Used 1+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

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

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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

3.

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

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Given the probability model in the table below, what is the expected value of the random variable?
  X        50          20        5
P(X)     0.1         0.3      0.6

14
4.67
5
7.5

Tags

CCSS.HSS.MD.A.2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

You roll a standard die. You win $12 if you roll a six, $6 if you roll a one, and $0 if you roll anything else. What is the expected value of a single roll?

$3

$18

$9

$2

Tags

CCSS.HSS.MD.B.5A

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

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.HSS.MD.A.2

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

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

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