Question

Suppose that blood chloride concentration (mmol/L) has a normal distribution with mean 106 and standard deviation 5.

(a)

What is the probability that chloride concentration equals 107? Is less than 107? Is at most 107? (Round your answers to four decimal places.)

equals 107less than 107at most 107

(b)

What is the probability that chloride concentration differs from the mean by more than 1 standard deviation? (Round your answer to four decimal places.)

Does this probability depend on the values of *μ* and
*σ*?

---Select--- Yes No , this probability ---Select---
does does not depend on the values of *μ* and
*σ*.

(c)

How would you characterize the most extreme 0.8% of chloride concentration values? (Round your answers to two decimal places.)

The most extreme 0.8% of chloride concentrations values are those less than mmol/L and greater than mmol/L.

You may need to use the appropriate table in the Appendix of Tables to answer this question.

Answer #1

Suppose that blood chloride concentration (mmol/L) has a normal
distribution with mean 105 and standard deviation 5.
(a)
What is the probability that chloride concentration equals 106?
Is less than 106? Is at most 106? (Round your answers to four
decimal places.)
equals 106less than 106at most 106
(b)
What is the probability that chloride concentration differs from
the mean by more than 1 standard deviation? (Round your answer to
four decimal places.)
Does this probability depend on the values...

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 = 15.5; σ = 4.5 P(10 ≤ x ≤
26) =
b. Now, 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 = 14.2; σ = 2.9 P(8 ≤
x ≤ 12) =
c. Now, assume...

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...

1. 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 = 14.3; σ = 3.5
P(10 ≤ x ≤ 26)=?
2.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 = 5.9; σ = 1.1
P(7 ≤ x ≤ 9)=?
3. Assume that x has a normal...

1.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 = 8; σ = 6 P(5 ≤ x ≤ 14)
=
2. 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 = 14.4; σ = 4.2
P(10 ≤ x ≤ 26) =
3. Assume that x has...

Assume that x has a normal distribution with the
specified mean and standard deviation. Find the indicated
probability. (Enter a number. Round your answer to four decimal
places.)
μ = 8; σ = 2
P(7 ≤ x ≤ 11) =
Assume that x has a normal distribution with the
specified mean and standard deviation. Find the indicated
probability. (Enter a number. Round your answer to four decimal
places.)
μ = 20; σ = 3.4
P(x ≥ 30) =

1. 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 = 50; σ = 15
P(40 ≤ x ≤ 47) =
2. Coal is carried from a mine in West Virginia to a power plant
in New York in hopper cars on a long train. The automatic hopper
car loader is set to put 56 tons of coal into each car. The actual...

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; σ = 6
P(1 ≤ x ≤ 13) =
b) 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 = 103; σ = 20
P(x ≥ 120) =
c) Find z such that 5%...

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.)
A) μ = 6.0; σ = 1.2
P(7 ≤ x ≤ 9) =
B) μ = 6.0; σ = 1.2
P(7 ≤ x ≤ 9) =
C) μ = 100; σ = 11
P(x ≥ 120) =
D) μ = 3.0; σ = 0.37
P(x ≥ 2) =

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 = 100; σ = 17
P(x ≥ 120) =

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