For a normal distribution with a mean of μ = 90 and a standard deviation of σ = 5, what is p(X>87)? a. p = .8253 b. p = .2257 c. p = .7257 d. p = .2743

Q: The coefficient of variation (CV%) is a normalized measure of the dispersion of a distribution. It…

A: Given,∑Xi=61.2∑Xi2=444.6n=16

Q: Given a normal distribution with u = 50 and o = 10, find a. the value of x that has 70% of the…

A: as per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…

Q: For a normal distribution with a mean of 2 and a standard deviation of 0.5, what is p(1.7 < X <…

A: From the provided information, Mean (µ) = 2 Standard deviation (σ) = 0.5 X ~N (2, 0.5)

Q: A normal distribution has a mean of p=40 with a 10. a vertical line is drawn through the…

A:

Q: Which is true about the standard normal curve?

A: here use basic of normal curve

Q: A rv X has a normal distribution with o=10. If the prob is 0.8212 that it will take on a value…

A:

Q: What are the mean and standard deviation of the normal distribution curve pictured below? It was…

A: From this graph we have to find mean and standard deviation.

Q: X follows a normal distribution with mean 45 and standard deviation 6. The z-variate corresponding…

A: Answer : The value of the X-variate is : (c) 54.

Q: In a normal distribution with mean μ=45 ​lb, a weight of x=63 lb has a​ z-value of 2. Find the…

A: In a normal distribution, the followings are given:- Mean μ=45 lb A weight of x=63 lb z value z=2 To…

Q: Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(-…

A: Given that z scores are normally distributed with a mean of 0 and a standard deviation of 1.Want to…

Q: Given a normal distribution with µ = 30 and o = 6, find a. The normal curve area to the right x =…

A: As per guideline expert have to answer first question three subparts only dear student please upload…

Q: The value of the standard deviation o of a normal distribution is always O a. Equal to zero b.…

A: Basics: We know that , standard normal distribution  with mean of 0 and standard deviation of 1. i.e…

Q: A Cl estimate is designed for the gain in the circuit on a device. Assume that gain is a normal…

A:

Q: For a Normal distribution with μ=11.9μ=11.9 and σ=2.9σ=2.9. What proportion of observations have…

A: Obtain the standard z-score for the random variable equals 7. The standard z-score for the random…

Q: Let x have a normal distribution with a mean of 91.2 and a standard deviation of 4.92. The z value…

A: Given that  Mean = 91.2 , Standard deviation = 4.92 X-score = 73.98

Q: For the following, assume a normal distribution with a mean (x-bar) of 30, and a standard deviation…

A: We have given that  X~N(mu,sigma ^2) mu=30,sigma =5 Z-socre =(x-mu)/sigma

Q: indicate whether the body is to the right or left of the score and find the proportion of the…

A: Given :  A normal distribution has a mean of μ = 30  standard deviation of σ = 12.

Q: Let X has a normal distribution with a mean of 120 and a standard deviation of 20. The z value…

A:

Q: A normal distribution has a mean of 85.6 and a standard deviation of 4.88. Find the data value…

A: Given, X~Normal(μ,σ2)μ = 85.6σ = 4.88z=2.85

Q: A sample has a mean of M = 90 and a standard deviation of s = 20. b. Find the X value for each of…

A: The z-score for a particular value, X = x, is: z = (x –mean)/standard deviation   = (x-M)/S

Q: For a normal distribution with a mean of μ = 10 and a standard deviation of σ = 2, what is p(5<X<15)

A: It is given that X follows N(mean = 10, SD = 2), then Z = (X - mean)/SD follows N(0,1)

Q: For a normal distribution with a mean of μ = 85 and a standard deviation of σ = 20, find the…

A: 1. The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the…

Q: For a normal distribution with a mean of µ = 80 and a standard deviation of σ = 10, what is p(X<95)?…

A:

Q: For a normal distribution with a mean of µ = 500 and a standard deviation of σ = 50, what is…

A:

Q: A vertical line drawn through a normal distribution at z = -0.72 separates the distribution into two…

A: Given :  A vertical line drawn through a normal distribution at z = -0.72 separates the distribution…

Q: If x is normally distributed with a mean of 6 and a standard deviation of 4, find P(x>8) a. 0.1915…

A: If x is normally distributed with a mean of 6 and a stnadard deviation of 4, find Px&gt;8 Answer: b.…

Q: Let x have a normal distribution with a mean of -30.2 and a standard deviation of 10.67. The z value…

A:

Q: On an exam with a mean of µ = 70, a person scores X = 60. Which of the following values for the…

A: Given ,         Mean μ=70and a person score X=60If σ=2 , μ=70 , x=60 then the z-scoreis z-score…

Q: a normal distribution with mean u = 58 and standard deviation o = 4.2 %3D

A: Given that  A graph of normal distribution with  Mean (μ) = 58 Standard deviation (σ)= 4.2   We know…

Q: What proportion of observations have values less than 7? Round to fourth decimal

A: From the provided information,    Mean of normal distribution µ=11.9 And standard deviation is σ=2.9…

Q: Find the data value corresponding to the value of z given. (Enter your answer to four decimal…

A:

Q: For a normal distribution a mean of 60 and a standard deviation of 10, find the proportion of the…

A: It is given that the mean is 60 and the standard deviation is 10.

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: Given data mean=69.0 inches standard deviation=2.8 inches x=79.7 inches

Q: The coefficient of variation (CV%) is a normalized measure of the dispersion of a distribution. It…

A: given data  ∑x = 61.2∑x2 = 444.6n = 16cv% = ?

Q: For a normal distribution with μ = 30, σ = 5 and z = -2, find the value of x

A: Given, Here, find the value of x.

Q: Given a normal distribution with mean equal to 30 and standard deviation of 6, find the normal curve…

A: The mean of the data is 30. The standard deviation of the data is 6.