A normal distribution has mean 50 and standard deviation 4. Approximately what proportion of this normal...

Question

Question

A normal distribution has mean 50 and standard deviation 4. Approximately what proportion

of this normal distribution lies above 58?

math Statistics-And-Probability

Answer 1

Answer #1

P[X>58]

58 - 50 = P(Z >

=P[Z>2]

= 1-P2<2

=1-0.9772...........................by using Z table

=0.0228

Answer 2

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