here as z=0.28 for which P(Z<0.28)=0.61
hence correct option is iii)
there is approximately 39% chance of getting a value that is larger than x
(b) Suppose that the random variable X has a normal distribution with mean μ and standard...
Suppose x has a normal distribution with mean μ = 28 and standard deviation σ = 13. Describe the distribution of x values for sample size n = 4. (Round σx to two decimal places.) μx = σx = Describe the distribution of x values for sample size n = 16. (Round σx to two decimal places.) μx = σx = Describe the distribution of x values for sample size n = 100. (Round σx to two decimal places.) μx...
To convert any x value from a normal distribution with mean μ and standard deviation σ into a z-score, we ___________ . Select one: a. Add μ to x and then divide by σ b. Divide x by σ c. Subtract μ from x and then multiply by σ d. Subtract μ from x and then divide by σ
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Let the random variable X follow a normal distribution with a mean of μ and a standard deviation of σ. Let X 1 be the mean of a sample of 36 observations randomly chosen from this population, and X 2 be the mean of a sample of 25 observations randomly chosen from the same population. a) How are X 1 and X 2 distributed? Write down the form of the density function and the corresponding parameters. b) Evaluate the statement:...
Suppose the random variable x has a Poisson Distribution with mean μ = 7.4. Find the standard deviation σ of x. Round your answer to two decimal places.
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.
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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)
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