Question

A distribution of values is normal with a mean of 278.8 and a
standard deviation of 18.6.

Find the probability that a randomly selected value is between
261.7 and 301.9.

*P*(261.7 < *X* < 301.9) =

*please show all calculations and steps*

Answer #1

A distribution of values is normal with a mean of 46.9 and a
standard deviation of 32.2. Find the probability that a randomly
selected value is between 8.3 and 50.1. P(8.3 < X < 50.1)
=

1. A distribution of values is normal with a mean of 70.8 and a
standard deviation of 50.9.
Find the probability that a randomly selected value is less than
4.6.
P(X < 4.6) =
2. A distribution of values is normal with a mean of 66 and a
standard deviation of 4.2.
Find the probability that a randomly selected value is greater than
69.4.
P(X > 69.4) =
Enter your answer as a number accurate to 4 decimal places. Answers...

1. A distribution of values is normal with a mean of 110.8 and a
standard deviation of 33.5.
Find the probability that a randomly selected value is less than
20.7.
P(X < 20.7) =
Enter your answer as a number accurate to 4 decimal places. *Note:
all z-scores must be rounded to the nearest hundredth.
2. A distribution of values is normal with a mean of 2368.9 and
a standard deviation of 39.4.
Find the probability that a randomly selected...

Normal distribution height of men with a mean of 70.7 inches and a
standard deviation of 1.5 inches. If a one man is randomly selected
find the probability his height is between 60.5 inches and 74.1
inches.
*note: please use ti-84 and show all steps taken.

1.)
A distribution of values is normal with a mean of 210 and a
standard deviation of 3.
Find the interval containing the middle-most 78% of scores:
Enter your answer accurate to 1 decimal place using interval
notation. Example: (2.1,5.6)
Hint: To work this out, 1) sketch the distribution, 2) shade the
middle 78% of the data, 3) label unkown data values on the
horizontal axis just below the upper and lower ends of the shaded
region, 4) calculate the...

Assume that x has a normal distribution with the
specified mean and standard deviation. Find the indicated
probability. (Round your answer to four decimal places.)
? = 4.6; ? = 1.9
P(3 ? x ? 6) =
Assume that x has a normal distribution with the
specified mean and standard deviation. Find the indicated
probability. (Round your answer to four decimal places.)
? = 28; ? = 4.2
P(x ? 30) =
Consider a normal distribution with mean 36 and...

a.) Assume that x has a normal distribution with the
specified mean and standard deviation. Find the indicated
probability. (Round your answer to four decimal places.)
μ = 4.4; σ = 2.2
P(3 ≤ x ≤ 6) =
b.) Consider a normal distribution with mean 34 and standard
deviation 2. What is the probability a value selected at random
from this distribution is greater than 34? (Round your answer to
two decimal places.)
c.) Assume that x has a normal...

A population of values has a normal distribution with
μ=69.7μ=69.7 and σ=60.5σ=60.5. You intend to draw a random sample
of size n=220n=220. Please show your answers as numbers
accurate to 4 decimal places.
Find the probability that a single randomly selected value is
between 74.6 and 80.7.
P(74.6 < X < 80.7) =
Find the probability that a sample of size n=220n=220 is randomly
selected with a mean between 74.6 and 80.7.
P(74.6 < ¯xx¯ < 80.7) =

A population of values has a normal distribution with
μ=89.5μ=89.5 and σ=22.5σ=22.5. You intend to draw a random sample
of size n=210n=210. Please show your answers as numbers accurate to
4 decimal places.
Find the probability that a single randomly selected value is
between 91.1 and 92.
P(91.1 < X < 92) =
Find the probability that a sample of size n=210n=210 is randomly
selected with a mean between 91.1 and 92.
P(91.1 < ¯xx¯ < 92) =

A population of values has a normal distribution with
μ=68.6μ=68.6 and σ=66σ=66. You intend to draw a random sample of
size n=185n=185. Please show your answers as numbers accurate to 4
decimal places.
Find the probability that a single randomly selected value is
between 53.6 and 67.1.
P(53.6 < X < 67.1) =
Find the probability that a sample of size n=185n=185 is randomly
selected with a mean between 53.6 and 67.1.
P(53.6 < ¯xx¯ < 67.1) =

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 3 minutes ago

asked 8 minutes ago

asked 10 minutes ago

asked 13 minutes ago

asked 22 minutes ago

asked 28 minutes ago

asked 31 minutes ago

asked 31 minutes ago

asked 31 minutes ago

asked 31 minutes ago

asked 31 minutes ago

asked 33 minutes ago