Answer: a) 0.5636 b) 0.7881
Step-by-step explanation:
We assume that women’s heights are normally distributed .
Let x be the random variable that represents the shoe sizes.
Also, The population mean =
; Standard deviation: 
a) Formula for z:-

Put x= 64, we get

Now, the probability that the male shoe sizes are greater than 8 :-

Hence, the probability that her height is less than 64 inches = 0.5636
b. Sample size : n= 25
Then , the formula for z :-

Put x= 64, we get

Then, the probability that they have a mean height less than 64 inches.:_

Hence, the probability that they have a mean height less than 64 inches. =0.7881
Step-by-step explanation:
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Create equal fractions to find the number of hours he used the health club for.
2/13=x/29.25
Then, simplify so that x is by itself.
(29.25x2)/13 = x
x= 58.5/13
x=4.5 hours
Answer:
Step-by-step explanation:
the answers are 123