Posted by **Chinadoll** on Monday, October 26, 2009 at 2:35pm.

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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