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 region of the graph.

Question 1176407: 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 region of the graph. Assume the variable x is normally distributed.
284 < X < 293
u= 269
o= 11
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 = 269   σ  = 11  
Using TI or similarly an inexpensive calculator like a Casio fx-115 ES plus.

P ( 284 < X < 293) = normalcdf (284,293, 11, 269) = .0718

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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