I think you mean circumference...Area is 
. We have the area so we need to use it to solve for the radius which we will then use in the circumference formula. 
. Divide both sides by pi to get 
. Of course the simplification of the left side gives us 
and r = 4. Now fill that in to the circumference formula, which is 
, to get C
which is a circumference of 
Assume that women's heights are normally distributed with a mean given by mu equals 63.2 in, and a standard deviation given by
sigma equals 2.1 in. complete parts a and
b.
a. if 1 woman is randomly selected, find the probability that her height is between 62.4 in and 63.4 in. the probability is approximately . 1863. (round to four decimal places as needed.)
b. if 7 women are randomly selected, find the probability that they have a mean height between 62.4 in and 63.4 in
b.
a. if 1 woman is randomly selected, find the probability that her height is between 62.4 in and 63.4 in. the probability is approximately . 1863. (round to four decimal places as needed.)
b. if 7 women are randomly selected, find the probability that they have a mean height between 62.4 in and 63.4 in
1 answer:
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