Question

Calculate the means based on the information below. X - f 4 -1 3 - 3...

Calculate the means based on the information below.

X - f

4 -1

3 - 3

2 - 2

1 - 2

Math   Statistics-And-Probability   
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Homework Answers

Answer #1

Solution:

We have to find mean for given discrete frequency distribution of random variable X.

Formula:

thus we need to make following table:

Xi fi Xi * fi
4 1 4
3 3 9
2 2 4
1 2 2

Thus

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