Question

According to the National Health Survey, the heights of adult males in the United States are normally distributed with mean 69.0 inches and a standard deviation of 2.8 inches.

(a) What is the probability that an adult male chosen at random is between 66 and 72 inches tall? (Round your answer to five decimal places.)

(b) What percentage of the adult male population is more than 6 feet tall? (Round your answer to three decimal places.)

Answer #1

The heights of adult males in the United States are normally distributed with mean 69.0 inches and a standard deviation of 2.8 inches. .

a)The probability that an adult male chosen at random is between 66 and 72 inches tall is

b)The probability (6 feet is 72 inches),

So percentage of the adult male population is more than 6 feet tall.

Suppose that the heights of adult men in the United States are
normally distributed with a mean of 69 inches and a standard
deviation of
3 inches. What proportion of the adult men in United States are
at least 6 feet tall? (Hint: 6 feet =72 inches.) Round your answer
to at least four decimal places.

3)
The height of an adult male in the United States is
approximately normally distributed with a mean of 69.3 inches and a
standard deviation of 2.8 inches.
Find the percentile P90 for the heights of adult
males in the United States.
Provided your answer in inches, rounded to 2 decimal
places.

According to a study done by De Anza students, the height for
Asian adult males is normally distributed with an average of 66
inches and a standard deviation of 2.5 inches. Suppose one Asian
adult male is randomly chosen. Let X = height of the
individual.
1. Find the probability that the person is between 64 and 68
inches. (Round to four decimal places) and Sketch the Graph.
2. Would you expect to meet many Asian adult males over 72...

1.The height of an adult male in the United States is
approximately normally distributed with a mean of 69.3 inches and a
standard deviation of 2.8 inches. Find the percentile P76 for the
heights of adult males in the United States.
Round Answer to 4 decimal places.
2. The height of an adult male in the United States is
approximately normally distributed with a mean of 69.3 inches and a
standard deviation of 2.8 inches. Assume that such an individual...

Suppose that the heights of adult women in the United States are
normally distributed with a mean of 64 inches and a standard
deviation of 2.2 inches. Jennifer is taller than 80% of the
population of U.S. women. How tall (in inches) is Jennifer? Carry
your intermediate computations to at least four decimal places.
Round your answer to one decimal place.

Heights of adult males are approximately normally distributed
with a mean of 66.6 inches and a standard deviation of 1.9 inches.
If a sample of 50 adult males are chosen, what is the probability
their mean height will be between 67 inches and 67.4 inches?
Report your answer to four decimal places.

According to a study done by De Anza students, the height for
Asian adult males is normally distributed with an average of 66
inches and a standard deviation of 2.5 inches. Suppose one Asian
adult male is randomly chosen. Let X = height of the
individual.
Give the distribution of X
X~ ______ (_____,_____)
Find the probability that the person is between 65 and 69
inches.
Write the probability statement.
P(_______<X<_________)
What is the probability (round to four decimals
places)...

According to a study done by De Anza students, the height for
Asian adult males is normally distributed with an average of 66
inches and a standard deviation of 2.5 inches. Suppose one Asian
adult male is randomly chosen. Let X = height of the
individual.
The middle 40% of heights fall between what two values?
Write the probability statement.
P(x1 < X < x2) =
State the two values. (Round your answers to one decimal
place.)
x1
=
x2...

1)
The height of an adult male in the United States is
approximately normally distributed with a mean of 69.3 inches and a
standard deviation of 2.8 inches.
Assume that such an individual is selected at random. What is
the probability that his height will be greater than 67.8
inches?
Round your answer to 4 decimal places.

According to a study done by UCB students, the height for
Martian adult males is normally distributed with an average of 68
inches and a standard deviation of 2.5 inches. Suppose one Martian
adult male is randomly chosen. Let X = height of the individual.
Round all answers to 4 decimal places According to a study done by
UCB s% of Martian heights lie between what two numbers? Low:
__inches High: ___inches must be 4 decimals rounded

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