If z is a standard normal variable, find the probability that z is less than − 2.08 ( round the answer in four decimal places)

Q: The time it takes me to ride my bike to school is uniformly distributed between 27 minutes and 48…

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Q: The processing time for the robogate has a normal distribution with mean 23 sec and standard…

A: Given: The mean of the processing time μ=23 sec The standard deviation σ=2 sec.

Q: Suppose X has a continuous uniform distribution over the interval -1,1. Determine the variance.…

A: GivenX has a continuos uniform distribution over the interval (-1,1)The corresponding density…

Q: Which proportion of a normal distribution is located between z = 0 and z = +1.50?

A: Solution: Here, it is needed to find the proportion of a normal distribution is located between z=0…

Q: What is the calculator command used to find the probability of a continuous Normal random variable…

A: The Normal distribution is a continuous probability distribution that is symmetrical on both sides…

Q: A normal distribution has a normal distribution of 70 with a standard deviation of 8. If one score…

A: Here Given  Mean=μ=70 Standard Deviation=σ=8

Q: X is a random variable of student score approximately normal with mean μ = 60 and a standard…

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Q: A statistician has analysed the duration of audience laughter after a stand up comedian's jokes. The…

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Q: For a standard normal curve, find the probability a value has a z-score less than -2.

A: Standardized z-score:   The standardized z-score represents the number of standard deviations the…

Q: Suppose we have a normal distribution with µ = 10

A: Let X be a random variable which follows a normal distribution with mean μ and standard deviation…

Q: Find the value of the standard normal random variable given P(z > #) = 0.2073. (Use a table or…

A: The given random variable is a standard normal random variable. The objective is to find out the…

Q: Find the probability, P(Z > -0.77) for a standard normal variable Z. 20 Find the probability,…

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Q: The time it takes me to ride my bike to school is uniformly distributed between 20 minutes and 36…

A: We have find uniform distribution...

Q: Number of weekly grocery deliveries requested at Wal-Mart is a normal random variable with mean m =…

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Q: The average time taken to run 10km, X, follows a normal distribution with μ = 60 minutes and σ = 15…

A:

Q: Suppose that the hazard rate of a certain continuous positive random variable is given by 4t+4. Find…

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Q: Let X be a random variable with a normal distribution with a mean of 100 and a standard deviation of…

A: We have given that  Mean(µ) = 100Standard deviations (σ) = 20X ~ N (µ, σ )= N(100, 20)

Q: Let x be a continuous random variable that is normally distributed with a mean of 65 and a standard…

A: Solution: From the given information, X follows normal distribution with mean µ=65 and a standard…

Q: Number of weekly grocery deliveries requested at Wal-Mart is a normal random variable with mean m =…

A:

Q: The processing time for the robogate has a normal distribution with mean 21 sec and standard…

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Q: What is the probability (round to four decimals) that at least 30 individuals will experience these…

A: Here  P = probability of individual have side effects from flu shot n = 200 (sample size) Here use…

Q: Let x be a continuous random variable that is normally distributed with a mean of 57 and a standard…

A: We have given that  Let x be a continuous random variable that is normally distributed with a mean…

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: X is the Binomial Random Variable which counts the number of students who passed an exam. If the…

A: Given n=81 P=0.85

Q: Assume that a randomly selected subject given a bone density test. Those test scores are normally…

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Q: Find the mean/ expected value of X round to two decimal place

A: The probability distribution is:xP(x)79920.00044920.004920.012-80.9836

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

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Q: distribution, -ility that X is

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Q: Jse normal approximation to estimate the probability of getting less than 47 girls in 100 births.…

A: n=100, p=1/2, q=1/2 μ=n×p=100×1/2=50 σ=√(n×p×q)=√(100×1/2×1/2)=5

Q: Find the mgf of the random variable Y = e¬^X when X ~ Exp(X). What is the name of the distribution…

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Q: he National Coffee Association reported that 65% of U.S. adults drink coffee daily. A random sample…

A: We have to find the probability that less than 60%of sampled adults drink coffee daily

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=100and a standard…

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 20 Let X be a random variable…

Q: Let x be a random variable that represents white blood cell count per cubic milliliter of whole…

A: Standard normal distribution : Let x be the continuous random variable and it said to be follows…

Q: Find the probability of z greater than 0.5 if mean is 0 and standard deviation is 1.

A: Given, Mean=0 S.D=1 P(z&gt;0.5)=?

Q: EZ = X +Y if X,Y are

A: X follows normal distribution with mean 0 and variance 1. Y follows normal distribution with mean 0…

Q: X is a binomial random variable with n= 20 and p= 0.46 Find the mean and variance for X?

A: Answer: Using the given data, X follows binomial distribution with n = 20 and p = 0.46 X ~ Binomial…

Q: The time taken by brake discs to overheat on construction equipment is normally distributed with…

A: X be time taken by brake discs to overheat on construction equipment. and X has normally…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard…

A:

Q: Find the Z- Statistic, for a random sample of size 18 from a normal distribution with σ=3 produced a…

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Q: Let the random variable x have a normal distribution with a mean value of 70 and a varience of 25.…

A: Given data, Mean      μ=75 Variance σ2 =25 sd          σ=5 P(X&lt;80)=?

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.