5.2 Analyzing Discrete Random Variables
Quiz
•
Mathematics
•
11th - 12th Grade
•
Medium
+6
Standards-aligned
Kerryana Medlin
Used 6+ times
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30 questions
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1.
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
CCSS.HSS.MD.A.3
CCSS.HSS.MD.B.5
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.
Tags
CCSS.HSS.MD.A.2
CCSS.HSS.MD.A.3
CCSS.HSS.MD.B.5
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A car dealer buys hybrids for $21,000 each and sells them for $24,500 each. Find his expected weekly profit.
Tags
CCSS.HSS.MD.A.2
CCSS.HSS.MD.B.5
4.
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
CCSS.HSS.MD.A.3
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Find P(X < 5)
0.2
0.3
0.5
0.7
Tags
CCSS.HSS.MD.A.1
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Find P(X ≤ 5)
0.2
0.3
0.5
0.7
Tags
CCSS.HSS.MD.A.1
CCSS.HSS.MD.A.3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The table above shows a television station's advertisement sales. The distribution of sales for one 24-hour day is given. Solve for the mean. Round to the nearest hundredth.
31.8
15.68
0.20
1.00
Tags
CCSS.HSS.MD.A.2
CCSS.HSS.MD.A.3
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