Question

Use the normal distribution of fish lengths for which the mean is 8 inches and the standard deviation is 5 inches. Assume the variable x is normally distributed.

What percent of the fish are longer than 14 inches?

(Round to two decimal places as needed.)

If 300 fish are randomly selected, about how many would you expect to be shorter than 6 inches?

(Round to two decimal places as needed.)

Answer #1

Use the normal distribution of fish lengths for which the mean
is 9 inches and the standard deviation is 5 inches. Assume the
variable x is normally distributed. (a) What percent of the fish
are longer than 14 inches? (b) If 300 fish are randomly selected,
about how many would you expect to be shorter than 6 inches?
(a) right parenthesis Approximately nothing% of fish are longer
than 14 inches. (Round to two decimal places as needed.)
(b) If 300...

Use the normal distribution of fish lengths for which the mean
is
1010
inches and the standard deviation is
44
inches. Assume the variable x is normally distributed.
left parenthesis a right parenthesis(a)
What percent of the fish are longer than
1313
inches?
left parenthesis b right parenthesis(b)
If
200200
fish are randomly selected, about how many would you expect to be
shorter than
66
inches?
left parenthesis a right parenthesis(a)
Approximately
nothing%
of fish are longer than
1313
inches....

Use the normal distribution of fish lengths for which the mean
is 8 inches and the standard deviation is 2 inches. Assume the
variable x is normally distributed.
(A) what percent of the fish are longer than 12 inches?
(B) if 400 fish are randomly selected, how many would you expect
to be shorter than 7 inches?

Use the normal distribution of SAT critical reading scores for
which the mean is 503 and the standard deviation is 112. Assume the
variable x is normally distributed. (a) What percent of the SAT
verbal scores are less than 650? ( b) If 1000 SAT verbal scores
are randomly selected, about how many would you expect to be
greater than 575?
(a) Approximately nothing% of the SAT verbal scores are less
than 650. (Round to two decimal places as needed.)...

The lengths of Atlantic croaker fish are normally distributed,
with a mean of 10.2 inches and a standard deviation of 1.9 inches
Suppose an Atlantic croaker fish is randomly selected.
a. You want to determine the proportion of the croaker
population that is longer than 15 inches. what z-score should you
use?
b. What proportion of the croaker population that is longer than
15 inches? Give ur answer to 4 decimal places, using z-score from
a
c. You select a...

Use the normal distribution of SAT critical reading scores for
which the mean is 507 and the standard deviation is 111. Assume the
variable x is normally distributed.
left parenthesis a right parenthesis
What percent of the SAT verbal scores are less than 675?
left parenthesis b right parenthesis
If 1000 SAT verbal scores are randomly selected, about how many
would you expect to be greater than 550?
left parenthesis a right parenthesis Approximately
nothing% of the SAT verbal scores...

25. Use the normal distribution of SAT critical reading scores
for which the mean is 503 and the standard deviation is 110. Assume
the variable x is normally distributed. left parenthesis a right
parenthesis What percent of the SAT verbal scores are less than
675? left parenthesis b right parenthesis If 1000 SAT verbal
scores are randomly selected, about how many would you expect to
be greater than 525? left parenthesis a right parenthesis
Approximately nothing% of the SAT verbal...

5.2.17 Use the normal distribution of SAT critical reading
scores for which the mean is 511 and the standard deviation is 117
. Assume the variable x is normally distributed. left parenthesis a
right parenthesis What percent of the SAT verbal scores are less
than 650 ? left parenthesis b right parenthesis If 1000 SAT verbal
scores are randomly selected, about how many would you expect to
be greater than 575 ? left parenthesis a right parenthesis
Approximately nothing %...

Use the normal distribution of SAT critical reading scores for
which the mean is
507507
and the standard deviation is
108108.
Assume the variable x is normally distributed.
left parenthesis a right parenthesis(a)
What percent of the SAT verbal scores are less than
650650?
left parenthesis b right parenthesis(b)
If 1000 SAT verbal scores are randomly selected, about how
many would you expect to be greater than
575575?
left parenthesis a right parenthesis(a)
Approximately
1.341.34%
of the SAT verbal scores...

Use the normal distribution of SAT critical reading scores for
which the mean is
511
and the standard deviation is
119
Assume the variable x is normally distributed.
left parenthesis a right parenthesis(a)
What percent of the SAT verbal scores are less than
600?
left parenthesis b right parenthesis(b)
If 1000 SAT verbal scores are randomly selected, about how
many would you expect to be greater than
525?
left parenthesis a right parenthesis(a)
Approximately
nothing%
of the SAT verbal scores...

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