SOLUTION: Assume a member is selected at random from the population represented by the graph. Find the probability that the member selected at random is from the shaded area of the graph. As

Question 1176405: Assume a member is selected at random from the population represented by the graph. Find the probability that the member selected at random is from the shaded area of the graph. Assume the variable x is normally distributed.
200 < X < 425
u=506
o=116
The probability that the member selected at random is from the shaded area of the graph is? (Round to four decimal places as needed.)

Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!


Hi
Normal Distribution:   μ = 506   σ = 116  
Using TI or similarly an inexpensive calculator like a Casio fx-115 ES plus.

P ( 200 < X < 425) = normalcdf (200,425, 116, 506) = .2383

Important to feel comfortable with Your calculator
and know what is permissible4 in in-class testing.
Wish You the Best in your Studies.

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