Statistics

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Using formula P(x) = x/15
For each of the values x = 1, 2, 3, 4, and 5.

a. probability distribution of x.
b. Show that the probability distribution of x satisfies the properties of a discrete probability distribution.
c. mean of x.

sketch the two specified normal curves on the same set of axes:
µ = 20 and o = 3, µ = 20 and o = 6.

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