Question

Find the standard deviation of the distribution. X 1 2 3 4 P(X) 0.23 0.38 0.27...

Find the standard deviation of the distribution.

X

1

2

3

4

P(X)

0.23

0.38

0.27

0.12
Math   Statistics-And-Probability   
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Homework Answers

Answer #1

Solution :

   => The standard deviation of the given distribution is σ = 0.9495

Explanation :

Given that x as 1,2,3,4

P(x) as 0.23,0.38,0.27,0.12

=> All decimals were converted to fractions then

=> x as 1, 2, 3, 4

=> P(x) as 23/100 , 19/50 , 27/100 , 3/25

=> The standard deviation of the given distribution is σ = 0.9495

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