Question Help MS 5.2.15 Wumen Ages 20-34 Total Assume a member is selected at ra

Question

Question Help MS 5.2.15 Wumen Ages 20-34 Total Assume a member is selected at random from the population represented by the graph area of the graph Assume the variable x is normally distributed Find the probability that the member selected at random is from the shaded 200 «x257 75 200257 300 Round to four deci nal places as needed) r The probabilty that the member selected at random is from the shaded area of the graph is nd s) Enter your answer the answer box and men click Check Answer All parts showing

Explanation / Answer

Z = (X - ) /

= 188

= 32.3

X = 200

Z = (200 - 188) / 32.3 = 0.3715.

Probability from z table = 0.6449.

X = 257

Z = (257 - 188) / 32.3 = 2.1362.

Probability from z table = 0.9837.

=> Probability (200 < x < 257) = 0.9837 - 0.6449 = 0.3388.

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