A normal random variable x has an unknown mean μ and standard deviation σ = 2....
A normal random variable x has an unknown mean μ and standard deviation σ = 2. If the probability that x exceeds 1.7 is 0.8023, find μ. (Round your answer to one decimal place.)
μ =
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A normal random variable x has an unknown mean
μ and standard deviation σ = 2....
A normal random variable x has an unknown mean and standard deviation
A normal random variable x has an unknown mean and standard deviation. The probability that e exceeds 4 is 0.9772, and the probability that x exceeds 5 is 0.9332. Find μ and σ.
Suppose X is a normal random variable with mean μ = 100 and standard deviation σ...
Suppose X is a normal random variable with mean μ = 100 and standard deviation σ = 10. Find a such that P(X ≥ a) = 0.04. (Round your answer to one decimal place.) a =
Suppose X is a normal random variable with mean μ = 70 and standard deviation σ...
Suppose X is a normal random variable with mean μ = 70 and standard deviation σ = 5. Find a such that P(X ≥ a) = 0.01. (Round your answer to one decimal place.) a =
X is a normal random variable with mean μ and standard deviation σ. Then P( μ−...
X is a normal random variable with mean μ and standard deviation σ. Then P( μ− 1.7 σ ≤ X ≤ μ+ 2.9 σ) =? Answer to 4 decimal places. (this is all the data I was given)
Suppose X is a normal random variable with mean μ = 70 and standard deviation σ...
Suppose X is a normal random variable with mean μ = 70 and standard deviation σ = 7. Find b such that P(70 ≤ X ≤ b) = 0.3. HINT [See Example 3.] (Round your answer to one decimal place.) b =
X is a normal random variable with mean μ and standard deviation σ. Then P( μ−...
X is a normal random variable with mean μ and standard deviation σ. Then P( μ− 1.6 σ ≤ X ≤ μ+ 2.6 σ) =? Answer to 4 decimal places.
1. X has a normal distribution with the given mean and standard deviation. Find the indicated...
1. X has a normal distribution with the given mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) μ = 41, σ = 20, find P(35 ≤ X ≤ 42) 2. Find the probability that a normal variable takes on values within 0.9 standard deviations of its mean. (Round your decimal to four decimal places.) 3. Suppose X is a normal random variable with mean μ = 100 and standard deviation σ = 10....
If X is a normal random variable with mean μ = 60 and standard deviation σ...
If X is a normal random variable with mean μ = 60 and standard deviation σ = 3, find a. P( X > 57 ) = b. P( X < 63 ) = c. P( 58 < X < 62 ) =
Given that x is a normal variable with mean μ = 49 and standard deviation σ...
Given that x is a normal variable with mean μ = 49 and standard deviation σ = 6.2, find the following probabilities. (Round your answers to four decimal places.) P(50 ≤ x ≤ 60)
Assume that x has a normal distribution with the specified mean and standard deviation. Find 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.) 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. (Round your answer to four decimal places.) μ = 6.0; σ = 1.4 P(7 ≤ x ≤ 9) = Assume that x has a normal...
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