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X 6.4.5-T
Qu
Assume that females have puhe rates that are normally distributed with a mean of 76.0 beats per minute and a standard deviation of a 12.5beato per minuto Complete parts (a) through (c) below
att hittemate is randamg selected to the probability that her pulse rate is less than 79 beats per minute
The pobavity
(Round to four decimal places as needed)

X 645T Qu Assume that females have puhe rates that are normally distributed with a mean of 760 beats per minute and a standard deviation of a 125beato per minut class=

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LammettHash

Same strategy as before: transform X ∼ Normal(76.0, 12.5) to Z ∼ Normal(0, 1) via

Z = (X - µ) / σ   ↔ X = µ + σ Z

where µ is the mean and σ is the standard deviation of X.

P(X < 79) = P((X - 76.0) / 12.5 < (79 - 76.0) / 12.5)

… = P(Z < 0.24)

… ≈ 0.5948

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