E(X) AND VAR(X)
Authored by YESIM GOKYAY
Mathematics
11th - 12th Grade
CCSS covered
Used 5+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The random variable x has E(X) = 1 and VAR(X) = 2
Find E(8X)
8
9
10
12
Tags
CCSS.HSS.MD.A.2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The random variable X has E(X) = 1 and Var(X) = 2.
Find E(X + 3)
5
7
4
8
Tags
CCSS.HSS.MD.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The random variable X has E(X) = 1 and Var(X) = 2.
Find VAR(X + 3)
5
4
3
2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The random variable X has E(X) = 1 and Var(X) = 2.
Find E(3X)
20
18
19
22
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The random variable X has E(X) = 1 and Var(X) = 2.
Find VAR(1-2X)
8
9
10
7
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The random variable X has E(X) = 1 and Var(X) = 2.
Find E(X2)
4
5.2
3
0
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
X is a discrete random variable. The random variable Y is defined by Y=4X - 6
Given that E(Y) = 2 and Var(Y) = 32, Find E(X)
3
2
4
5
Tags
CCSS.HSS.MD.A.2
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