A Level Statistics: Unit 7 - Discrete Random Variables

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For the tabulated data below, calculate the value of E[X]
X 0 1 2 3
P(x = X) 0.3 0.21 0.27 p
1.41
1 of 12
For the tabulated data below, calculate the value of Var[X]
X 0 1 2 3
P(x = X) 0.3 0.21 0.27 p
1.28
2 of 12
For the tabulated data below, calculate the value of sd[X]
X 0 1 2 3
P(x = X) 0.3 0.21 0.27 p
1.13
3 of 12
For the tabulated data below, calculate the expectation of X
X 2 4 6 8
P(x = X) 0.06 p 0.54 0.19
5.72
4 of 12
For the tabulated data below, calculate the Variance of X
X 2 4 6 8
P(x = X) 0.06 p 0.54 0.19
2.48
5 of 12
For the tabulated data below, calculate the standard deviation of X
X 2 4 6 8
P(x = X) 0.06 p 0.54 0.19
1.57
6 of 12
For the tabulated data below, calculate the mean of X
X -1 0 1 2
P(x = X) 0.22 0.41 p 0.07
0.22
7 of 12
For the tabulated data below, calculate the Variance of X
X -1 0 1 2
P(x = X) 0.22 0.41 p 0.07
0.752
8 of 12
For the tabulated data below, calculate the value for sd[X]
X -1 0 1 2
P(x = X) 0.22 0.41 p 0.07
0.867
9 of 12
For the tabulated data below, calculate the value of E[4X - 2]
X 1 2 5 10
P(x = X) 0.26 0.28 0.20 p
15.68
10 of 12
For the tabulated data below, calculate the value of Var[4X - 2]
X 1 2 5 10
P(x = X) 0.26 0.28 0.20 p
205.5
11 of 12
For the tabulated data below, calculate the value of sd[4X - 2]
X 1 2 5 10
P(x = X) 0.26 0.28 0.20 p
14.3
12 of 12

Other cards in this set

Card 2

Front

For the tabulated data below, calculate the value of Var[X]
X 0 1 2 3
P(x = X) 0.3 0.21 0.27 p

Back

1.28

Card 3

Front

For the tabulated data below, calculate the value of sd[X]
X 0 1 2 3
P(x = X) 0.3 0.21 0.27 p

Back

Preview of the front of card 3

Card 4

Front

For the tabulated data below, calculate the expectation of X
X 2 4 6 8
P(x = X) 0.06 p 0.54 0.19

Back

Preview of the front of card 4

Card 5

Front

For the tabulated data below, calculate the Variance of X
X 2 4 6 8
P(x = X) 0.06 p 0.54 0.19

Back

Preview of the front of card 5
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