Question

In: Statistics and Probability

Consider the following data: x -4 -3 -2 -1 0 P(X=x) 0.2 0.1 0.2 0.1 0.4...

Consider the following data:

x -4 -3 -2 -1 0
P(X=x) 0.2 0.1 0.2 0.1 0.4

Step 2 of 5 : Find the variance. Round your answer to one decimal place.

Step 3 of 5 : Find the standard deviation. Round your answer to one decimal place.

Solutions

Expert Solution

-4 0.2 -0.8 16 3.2
-3 0.1 -0.3 9 0.9
-2 0.2 -0.4 4 0.8
-1 0.1 -0.1 1 0.1
0 0.4 0 0 0

Round your answer to one decimal place.

Round your answer to one decimal place.


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