Question

(1 point) The distribution of heights of adult men in the U.S.
is approximately normal with mean 69 inches and standard deviation
2.5 inches. Use what you know about a normal distribution and the
68-95-99.7 rule to answer the following.

NOTE: If your answer is a percent, such as 25 percent, enter: "25
PERCENT" (without the quotes). If your answer is in inches, such as
10 inches, enter: "10 INCHES" (without the quotes and with a space
between the number and the INCHES). If your answer is an interval,
such as 14 to 15 inches, then enter: "14 TO 15 INCHES" (without the
quotes). Do not use extra zeros and do not include a decimal point
unless your answer is not a whole number. Your answer must be
entered in the correct format.

(a) About what percent of men are taller than 74?

Answer:

(b) About what percent of men are between 69 and 74
inches?

Answer:

(c) About what percent of men are between 64 and 66.5
inches?

Answer:

Answer #1

The distribution of heights of adult men in the U.S. is
approximately normal with mean 69 inches and standard deviation 2.5
inches. Use what you know about a normal distribution and the
68-95-99.7 rule to answer the following. NOTE: If your answer is a
percent, such as 25 percent, enter: "25 PERCENT" (without the
quotes). If your answer is in inches, such as 10 inches, enter: "10
INCHES" (without the quotes and with a space between the number and
the...

The distribution of heights of adult men in the U.S. is
approximately normal with mean 69 inches and standard deviation 2.5
inches. Use what you know about a normal distribution and the
68-95-99.7 rule to answer the following.
NOTE: If your answer is a percent, such as 25 percent, enter: "25
PERCENT" (without the quotes). If your answer is in inches, such as
10 inches, enter: "10 INCHES" (without the quotes and with a space
between the number and the...

The distribution of heights of adult men is approximately normal
with mean 69 inches and standard deviation of 2.5
inches.
a. What percent of men are shorter than 66 inches?
b. The distribution of heights of adult men is approximately
normal with mean 69 inches and standard deviation of 2.5 inches.
What is the probability that a man is taller than 74 inches?
c.. What is the probability that a man is between 70 and 72
inches tall?

The distribution of heights for adult men in a certain
population is approximately normal with mean 70 inches and standard
deviation 4 inches. Which of the following represents the middle 80
percent of the heights? 50 inches to 73.37 inches A 62 inches to 78
inches B 64.87 inches to 75.13 inches C 66 inches to 74 inches D
66.63 inches to 90 inches E Submit

2. The distribution of heights of young men is approximately
normal with mean 70 inches and standard deviation 2.5 inches.
a) Sketch a normal curve on which the mean and standard
deviation are correctly located. (It is easiest to draw the curve
first, locate the inflection points, then mark the horizontal
axis.)
b) What percentage of men are taller than 77.5 inches?
c) Between what two heights do the middle 95% of men's heights
fall?
d) What percentage of men...

The heights of English men are normally distributed with a mean
of 71.5 inches and a standard deviation of 2.5 inches. According to
the Expanded Empirical Rule, what percentage of English men are:
(a) Between 69 and 74 inches tall?
Answer:
(b) Over 73.175 inches tall?
Answer:
(c) Under 66.5 inches tall?
Answer:

Heights of men and women in the U.S. are normally distributed.
Recent information shows:
Adult men heights: µ = 69.6 inches with σ = 3
inches.
Adult women heights: µ = 64.1 inches with σ = 2.7 inches.
A.
6.62
B.
0.1414
C.
0.8002
D.
5.75
E.
65
F.
79
- A.
B. C.
D. E.
F.
If a woman is selected at random from...

A large study of the heights of 920 adult men found that the
mean height was 71 inches tall. The standard deviation was 7
inches. If the distribution of data was normal, what is the
probability that a randomly selected male from the study was
between 64 and 92 inches tall? Use the 68-95-99.7 rule (sometimes
called the Empirical rule or the Standard Deviation rule). For
example, enter 0.68, NOT 68 or 68%.

A menswear manufacturer knows that the height of all men is
normal with a mean of 69 inches and a standard deviation of 3
inches.
a) What proportion of all men have a height between 69 and 74
inches?
b) What proportion of all men have a height between 67 and 74
inches?
c) What is the 95th (and 99th) percentile of all men’s heights?

The heights (measured in inches) of men aged 20 to 29 follow
approximately the normal distribution with mean 69.5 and standard
deviation 2.9. Between what two values does the middle 91% of all
heights fall? (Please give responses to at least one decimal
place)

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