Question

in a recent little league softball game,each player went to bat 4 times the number of hits made by each player is description by following probability distribution
​A.1.00
B.1.75
C.2.00
D.2.15

Answer 1

Given : each player went to bat 4 times

Number of hits, x    0      1          2          3       4

Probability,     P(x) 0.10   0.20  0.30   0.25    0.15

To Find : mean of the probability distribution

A.1.00

B.1.75

C.2.00

D.2.15

Solution:

x           P(x)        x.P(x)

0           0.1              0

1             0.2            0.2

2            0.3            0.6

3            0.25          0.75

4            0.15            0.6

               ∑x.P(x)     2.15

mean of the probability distribution is 2.15

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