Heights of adult women are approximately normally distributed with a mean of 64.5 inches and a standard deviation of 2.5 inches. Find the probability that a randomly select adult woman has a height between 65 and 71 inches. Round to 4 decimal places. [p] Find the 85th percentile. (Find the height with an area of 0.85 to its left.) Round to 1 decimal place. [t]
Read DetailsHeights of adult women are approximately normally distributed with a mean of 64.5 inches and a standard deviation of 2.5 inches. Find the probability that a randomly select adult woman has a height between 62 and 66 inches. Round to 4 decimal places. [p] Find the 25th percentile. (Find the height with an area of 0.25 to its left.) Round to 1 decimal place. [t]
Read DetailsExample The average length of a maternity stay in a U.S. hospital is said to be 2.4 days with a standard deviation of 0.9 days. We randomly survey 80 women who recently bore children in a U.S. hospital. What is the probability that their average stay is between 2 and 2.5 days, inclusive. n = [n] = = [m] = = [s] Round to 4 decimal places.
Read DetailsHeights of adult women are approximately normally distributed with a mean of 64.5 inches and a standard deviation of 2.5 inches. Find the probability that a randomly select adult woman has a height between 68 and 72 inches. Round to 4 decimal places. [p] Find the 70th percentile. (Find the height with an area of 0.70 to its left.) Round to 1 decimal place. [t]
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