Question

Calculate the mean, the variance, and the standard deviation of the following discrete probability distribution. (Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places. Round your final answers to 2 decimal places.) x -41 -27 -8 -3 P(X = x) 0.29 0.35 0.21 0.15 Mean Variance Standard deviation

          Calculate the mean, the variance, and the standard deviation of the following discrete probability distribution. (Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places. Round your final answers to 2 decimal places.)

x -41 -27 -8 -3
P(X = x) 0.29 0.35 0.21 0.15

Mean
Variance
Standard deviation

Calculate the mean, the variance, and the standard deviation of the following discrete probability distribution. (Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places. Round your final answers to 2 decimal places.)

x -41 -27 -8 -3
P(X = x) 0.29 0.35 0.21 0.15

Mean
Variance
Standard deviation

Added by Mary R.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert T. L.

03/15/2023

Step 1

The mean is calculated as: µ = Σ [x * P(x)] where x is the value of the random variable and P(x) is the probability of that value. In this case, we have: µ = (0 * 0.29) + (1 * 0.35) + (2 * 0.21) + (3 * 0.15) µ = 0 + 0.35 + 0.42 + 0.45 µ = 1.22 Show more…

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Calculate the mean, the variance, and the standard deviation of the following discrete probability distribution. (Negative values should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places. Round your final answers to 2 decimal places.) x -41 -27 -8 -3 P(X = x) 0.29 0.35 0.21 0.15 Mean Variance Standard deviation