Find the variance of this probability distribution. round to two decimal places.

Variance = 4.68

Step-by-step explanation:

The formula for the variance is:

Where:

The mean can be calculated as each value multiplied by its probability

Replacing the mean and the summatory of X:

6.5

step-by-step explanation:

you said it was in the question

~courtney

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11