Suppose that a random variable X follows a normal distribution with mean 10 and variance 25. Let Z be a random variable following the standard normal distribution. You are interested in the probability that X is greater than 18. After standardization, what probability it will become? O a Pr(Z-0.4) Ob. Pr(2>1.6) OC Pr(Z>2) Od Pr(2>1.2) O e Pr(Z>1)

Q: Let x be a random variable that represents hemoglobin count (HC) in grams per 100 milliliters of…

A:

Q: 4. The continuous random variable X has a lognormal distribution if the random variable Y = In(X)…

A: import numpy as np sample = np.array([5.75, 5.73, 5.57, 5.67, 5.42, 6.02, 5.85, 5.39, 5.50, 5.37,…

Q: Let x be a random variable that represents hemoglobin count (HC) in grams per 100 milliliters of…

A: According our policy we can answer only first three subpart for remaining please repost the…

Q: Suppose z is a normal random variable. Find P ( Z < 1.84 ).

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Q: For a random variable X with standard deviation 5, Variance of 2x + 4 is Question 4Select one: a.…

A: Answer is in the explanation box.Explanation:

Q: If z is a standard normal variable, find the probability when z is less than 1.98

A: Given that, Z score = 1.98 Left tailed

Q: Let x be a random variable that represents hemoglobin count (HC) in grams per 100 milliliters of…

A: (a)   Use TI-83 plus Calculator to obtain the values of sample mean and the standard deviation.…

Q: Given independent random variables with means and standard deviations as shown,     Mean SD X…

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to…

Q: Consider a population with mean u = 50 and standard deviation o = 4. Let X1,X2, ... ,X10 be a random…

A: Given: Mean μ=50. Standard deviation σ=4 Determine the expected value of Standard deviation  using…

Q: Suppose that Z is a normal random variable. Fine P(Z>1.91).

A: Solution:- from given information Suppose that Z is a normal random variable

Q: 1) Assume the following joint probability distribution: P(x,y) 1 X 3 5 сл 2 0.1 0 0.1 y 5 0.3 0.1…

A: First we calculate the conditional distribution of x/y= 5  We find P(x/y=5) for every value of x.…

Q: Suppose the random variable X follows a normal distribution with mean 80 and variance 100. Then the…

A: X~Nμ=80, σ2=100 Standard deviation σ=100=10

Q: C. X is a normally distributed random variable with a mean of 57 and a standard deviation of 6. Find…

A:

Q: 1. X is a normally distributed random variable with mean 50 and standard deviation 5. What is the…

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Q: f z

A: As,  z is a standard number variable, so Mean (μ) = 0 Standard Deviation (σ) = 1 So, Z = z-01~N(0,1)

Q: Question 9. Suppose that W, X, and Y are independent normal random variables, each with mean u= 0…

A:

Q: robabilities. Use Table B (Z-table) to find the probabilities listed here. In each instance, sketch…

A: Use Table B (Z-table) to find the probabilities.

Q: z is a standard normal random variable. The P (-1.20  z  1.50) equals     a. 0.8181   b. 0.4332…

A: Given  A multiple choice question based a random variable.

Q: Suppose the random variable X had a population mean u=20 and a population standard deviation o=9. If…

A: Given that: X is normally Distributed with mean µ = 20.0 and standard deviation σ = 9.0 By using…

Q: The normal random variable X has mean 4 and variance 1.22. Find the probability hat: * * X < 2.5 X…

A: Given that.   X~N( μ , ?)   μ=4 , ?=1.22   Z-score =( x - μ )/?

Q: 4. Assume that the life of laptop brand X is normally distributed. It was found that the average…

A: As per company guidelines I solved only first question .thank you  Given X~μμ,σAverage μ= 5 year…

Q: Suppose the random variable X follows a normal distribution with mean 70 and variance 100. Then the…

A: Correct answer is (C) -1 and 1