"Given a standard normal distribution with mean =114 and standard deviation = 26, find P(75

Q: GPAs at CCSU are normally distributed with a mean of 2.32 and a standard deviation of 0.6. Find the…

A: GPAs at CCSU are normally distributed with a mean of 2.32 and a standard deviation of 0.6.Here,  and…

Q: Below is a graph of a normal distribution with mean μ = -4 and standard deviation 6 =2. The shaded…

A: Given that, X ~ N(μ=-4, σ=2) The shaded region is between -8 and -1.

Q: About % of the area under the curve of the standard normal distribution is outside the interval z ==…

A: The continuous random variable z follows normal distribution with mean 0 and standard deviation 1.…

Q: IQ is a scoe that is transofrmed so that it has a normal distribution with a mean 100 and standard…

A: Solution: Let x be the IQ score of person has normally distributed with meanμ=100 and standard…

Q: IQ is a scoe that is transofrmed so that it has a normal distribution with a mean 100 and standard…

A: Given ,  IQ is a score (X) that is transformed so that it has a normal distribution. Mean = x¯ = 100…

Q: An investigator polls a representative sample of common cold sufferers, asking them to estimate the…

A: Given : An estimates approximate a normal curve with a mean of 91 hours and a standard deviation of…

Q: Let X follow a normal distribution with mean 5.3 and unknown standard deviation. If P(X < 11.6) =…

A: From the given information, let X follows a normal distribution with mean of 5.3 and standard…

Q: GPAs at CCSU are normally distributed with a mean of 2.32 and a standard deviation of 0.6. Find the…

A: The objective of this question is to calculate the z-score for a GPA of 3.32. The z-score is a…

Q: Increasing the standard deviation does what to a normal curve?

A: A low standard deviation indicates that the data points tend to be very close to the mean; where as…

Q: A population of values has a normal distribution with �=119.5 and �=12. You intend to draw a random…

A: The objective of the question is to find the probability that a single randomly selected value is…

Q: Below is a graph of a normal distribution with mean μ = -2 and standard deviation = 2. The shaded…

A: Given data: Population Mean  = -2 Population standard deviation = 2

Q: The standard normal distribution has a mean of zero and a standard deviation of one. TRUE or FALSE

A: A standard normal distribution has a mean zero and standard deviation is one is called as standard…

Q: The number of orders received daily by an online vendor of used CDs is normally distributed with…

A: Let X be the number of orders received daily

Q: Scores on a standardized exam are known to follow a normal distribution with standard deviation o =…

A: From the provided information, Sample size (n) = 75 Sample mean (x̅) = 73.4 Population standard…

Q: The average lifespan of a CleanFreek dishwasher is normally distributed with a mean of 9 years and a…

A: Given that.   X~N( μ , ?)   μ=9 , ?=1.8   Z-score =( x - μ )/?

Q: Below is a graph of a normal distribution with mean u=-4 and standard deviation o= 2. The shaded…

A:

Q: Below is a graph of a normal distribution with mean μ = 1 and standard deviation 6 =3. The shaded…

A: According to the given information in this question, we need to find the following probability

Q: The average lifespan of a CleanFreek dishwasher is normally distributed with a mean of 8 years and a…

A: From the provided information,Mean (µ) = 8Standard deviation (σ) = 1.5

Q: A random variable follows normal distribution with mean 24 and standard deviation 4. Find z score…

A: Solution: From the given data, For a normal population, Mean μ = 24 Standard deviation σ = 4

Q: A normal distribution has a mean of 100 and a standard deviation of 7. Find the z-score for a data…

A: The mean is 100 and standard deviation is 7.

Q: tandard Normal Distribution Table a. What is the probability that a CleanFreek dishwasher will last…

A:

Q: Scores on a standardized exam are known to follow a normal distribution with standard deviation σσ =…

A:

Q: Suppose driving speed (X) on CA 60 measured by the police follows a Normal distribution with mean 65…

A: The objective of the question is to find the probability that the driving speed (X) is greater than…

Q: Find the z -value such that 75% of the standard normal curve lies between -z and z.

A: Given that 75% of the standard normal curve lies between  ̶ z and z.   That is,

Q: In the standard normal distribution, find the z value that corresponds to the 79th percentile.

A: We need to calculate Z-value corresponding to 79th percentile which means 79% of the data will be…

Q: Below is a graph of a normal distribution with mean u=-2 and standard deviation o= 2. The shaded…

A:

Q: Assume that x has a normal distribution with mean =4 and standard deviation q=2. Find (3<x<6)

A: Given   x has a normal distribution  mean μ=4  standard deviation σ=2 Find p(3&lt;x&lt;6)=?

Q: Find the mean and standard deviation for the number of 240 defects. Mean:      Standard Deviation:…

A: The product is manufactured in batches of 240 and the overall rate of defects is 44.8% That is,…

Q: Below is a graph of a normal distribution with mean μ = -5 and standard deviation o=3. The shaded…

A: given data  μ = -5σ = 3P(x&gt;-2) = ?

Q: Below is a graph of a normal distribution with mean μ=-2 and standard deviation o=3. The shaded…

A: The provided information is  µ=-2 σ=3 P(X&gt;1) P(X-µσ&gt;1-(-2)3)P(z&gt;1)=0.1586  (from…

Q: Consider the normal distribution with mean 63 and standard deviation 6. Find the area under the…

A:

Q: Assume the random variable X is normally distributed with a mean of 50 and a standard deviation of…

A:

Q: For a normal distribution with μ = 68 and σ = 6.5, determine the minimum data value to be in P85 (85…

A: For a normal distribution with μ = 68 and σ = 6.5, determine the minimum data value to be in P85 (85…

Q: About % of the area under the curve of the standard normal distribution is between and (or within…

A: Area  between z = -0.921 and z= 0.921

Q: The standard normal distribution has a mean of 0 and a standard deviation of 1. Find the z-score for…

A:

Q: Scores from a questionnaire measuring social anxiety form a normal distribution with a mean of μ =…

A: Given,mean(μ)=50standard deviation(σ)=10

Q: For a normal distribution with μ = 80 and σ = 3.2, determine the z-score of 78.4064. z-score =…

A: see the handwritten solution

Q: Assume that ex has a normal distribution with a specify mean and standard deviation mean =18…

A: Obtain the standard z-score for the random variable X equals 30. The standard z-score for the…

Q: The scores on a test in a particular class follow a Normal distribution with mean μ=140 and standard…

A: We have given that  Normal distribution with mean μ=140 and standard deviation σ=23 Find P(X&lt;181)

Q: In a Normal Distribution with the Mean of 88 and the Standard Deviation of 7, find P (x > 77)

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

Q: Below is a graph of a normal distribution with mean μ = -3 and standard deviation o=3. The shaded…

A:

Q: Below is a graph of a normal distribution with mean μ = -4 and standard deviation =2. The shaded…

A: The graph of normal distribution is given with the mean  and standard deviation