Discrete Random Variables

Quiz
•
Mathematics
•
9th - 12th Grade
•
Medium
+7
Standards-aligned
Collin Schumpp
Used 270+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
X 0 1 2 3 4 5
P(X) 0.24 0.37 0.20 0.11 0.05 0.03
What is the probability that a randomly chosen household has at least two cars?
Tags
CCSS.HSS.CP.A.1
CCSS.HSS.CP.B.7
CCSS.HSS.MD.A.1
CCSS.HSS.MD.A.3
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tags
CCSS.HSS.CP.B.9
CCSS.HSS.MD.A.3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The table above shows the number of cell phones per household in a small town. Find the mean round to the nearest hundredth.
2.80
2.93
0.10
0.14
Tags
CCSS.HSS.ID.A.2
CCSS.HSS.MD.A.2
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
What expected value does this broker assign to this stock's end-of-the-year price?
Tags
CCSS.HSS.MD.A.2
CCSS.HSS.MD.A.3
CCSS.HSS.MD.B.5
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tags
CCSS.HSS.MD.A.2
CCSS.HSS.MD.A.3
CCSS.HSS.MD.B.5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A discrete random variable X has the probability distributions shown in the table. Find the value of k. (Remember that a valid probability distribution must add up to 1)
1/3
7/12
1/12
1/4
Tags
CCSS.HSS.MD.A.3
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Determine which of the following distribution is NOT a probability distribution. (Remember that a valid probability distribution must add up to 1)
A
B
C
D
Tags
CCSS.HSS.MD.A.1
CCSS.HSS.MD.A.3
CCSS.HSS.MD.A.4
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