Question

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 a normal distribution with the
specified mean and standard deviation. Find the indicated
probability. (Round your answer to four decimal places.)

*μ* = 22; *σ* = 4.4

*P*(*x* ≥ 30)

Answer #1

Q.1) Given that, mean (μ) = 8 and

standard deviation (σ) = 6

We want to find, P(5 ≤ x ≤ 14)

=> P(5 ≤ x ≤ 14) = **0.5328**

b) Given that, mean (μ) = 14.4 and

standard deviation (σ) = 4.2

We want to find, P(10 ≤ x ≤ 26)

=> P(10 ≤ x ≤ 26) = **0.8502**

c) Given that, mean (μ) = 22 and

standard deviation (σ) = 4.4

We want to find, P(x ≥ 30)

=> P( x ≥ 14) = **0.0344**

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...

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...

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 = 14.8; σ = 4.2
P(10 ≤ x ≤ 26) =

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 = 26; σ = 4.4
P(x ≥ 30) =

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...

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 = 106; σ = 10
P(x ≥ 120) =
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specified mean and standard deviation. Find the indicated
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μ = 110; σ = 13
P(x ≥ 90) =

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number. Round your answer to four decimal places.) μ = 24; σ = 4.4
P(x ≥ 30) =

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and standard deviation.
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P(x ≥ 30) =

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μ = 28; σ = 4.4 P(x ≥ 30) =

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

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