Consider the probability distribution below. x
F(x)
10
)2
20
)3
30
)4
40
)1

The expected value of x equals
A) 24
B) 25
C) 30
D) 100

Name: Consider the probability distribution below. x F(x) 10 )2 20 )3 30 )4 40 )1 The expected value of x equals A) 24 B) 25 C) 30 D) 100
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Question

Consider the probability distribution below. x
F(x)
10
)2
20
)3
30
)4
40
)1
​
The expected value of x equals
A) 24
B) 25
C) 30
D) 100

Quizplus · Accepted Answer

The expected value is calculated by multiplying each value of x by its probability and summing the results: (10*2 + 20*3 + 30*4 + 40*1) / (2+3+4+1) = 240/10 = 24.

Consider the Probability Distribution Below. X