Answered

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The following table contains the probability distribution of the number of daily traffic accidents in a small town.

Number of daily accidents

X

0

1

2

3

4

5

P (X = x)

0.10

0.45

0.20

0.15

0.05

0.05



The variance of the number of accidents per day is


Select one:

1.
0.5857


2.
1.8575


3.
3.0625


4.
1.5875

5.
1.2600

Sagot :

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