Question: consider the following data X 4 5 6 7 8 P(x=x) 0.2 0.2 0.1 0.2 0.3 1. Find the expected value E(x). 2. Find the

consider the following data

X 4 5 6 7 8
P(x=x) 0.2 0.2 0.1 0.2 0.3

1. Find the expected value E(x).

2. Find the variance

3. Find standard deviation

4. Find the value of P (x<= 8)

5. Find the value of P(x>4)

round to one decimal places .

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