How do you calculate the mean and standard deviation for a discrete random variable?

Mathematics

1 answer:

Triss [41]3 years ago

8 0

Answer:

For a discrete random variable the standard deviation is calculated by summing the product of the square of the difference between the value of the random variable and the expected value, and the associated probability of the value of the random variable, taken over all of the values of the random variable, and finally

Step-by-step explanation:

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lord [1]

Answer:

39.7

Step-by-step explanation:

first must calculate the length of AB and BC

AB = 16.43

CB= 12.216

then perimeter : Perimeter of a triangle = sum of all three sides

$16.43 + 11 + 12.216 = 39.646 = 39.7$