Workshop: Discrete Random Variables

Quiz
•
Mathematics
•
University
•
Hard
+9
Standards-aligned
Mrs. G
Used 105+ times
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Is this a probability distribution?
No, the sum of p(x) does not equal 1.
Yes, all p(x) are between 0 and 1.
No, all p(x) are not between 0 and 1.
Yes, the sum p(x) is 1.
Tags
CCSS.HSS.MD.A.1
CCSS.HSS.MD.A.3
2.
MULTIPLE CHOICE QUESTION
5 mins • 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
3.
MULTIPLE CHOICE QUESTION
5 mins • 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 standard deviation. Round to the nearest hundredth.
35.76
268.1
16.3
1279.35
Tags
CCSS.HSS.ID.A.2
CCSS.HSS.ID.A.4
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
X 50 20 5
P(X) 0.1 0.3 0.6
Tags
CCSS.HSS.MD.A.2
CCSS.HSS.MD.A.3
CCSS.HSS.MD.B.5
5.
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
CCSS.HSS.MD.A.4
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Tags
CCSS.HSS.CP.A.2
CCSS.HSS.CP.A.3
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
In a survey, 55% of the voters support a particular referendum. If 30 voters are chosen at random, find the standard deviation of the number of voters who support the referendum.
2.7
16.5
7.425
4.06
Tags
CCSS.HSS.ID.A.4
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