A random variable is binomially distributed with n= 16 and 7 = .40. The expected value and standard deviation of the variables are Multiple Choice 2.00 and 1.24. 4.80 and 4.00. 6.40 and 1.96. 2.00 and 1.20.

Q: A random variable is binomially distributed with n= 16 and pi=.40. The expected value and standard…

A: It is an important part of statistics. It is widely used.

Q: h students to compete a certain examination is 50.6 minutes. The standard deviation is 6 minutes.…

A: Given, μ=50.6σ=6

Q: Service time for a customer coming through a checkout counter in a retail store is a random variable…

A: Given that: n1=13n2=28 Population means of both counter are equal i.e., μ1=μ2=4 Population standard…

Q: The owner of a shop knows the number of customers coming to his shop in a day is a random variable…

A: mean = 23.7 sigma = 4.2 Let X represent the nu,ber of people coming to shop in a day

Q: Consider a binomial random variable where the number of trials is 12 and the probability of success…

A: Given Data sample size,n= 12 probability of success,p= 0.25 probability of…

Q: A binomial random variable has mean 1.8 and variance 1.44. Determine complete binomial probability…

A: Given information: A binomial random variable has mean 1.8 and variance 1.44. Need to find the…

Q: The net weight of a can of salmon is a random variable with a mean of 6.07 ounces and a standard…

A:

Q: Suppose you have a distribution, X, with mean = 15 and standard deviation = 6. Define a new random…

A: It is given that  Mean of X, E(X) = 15 Standard deviation of X, SD(X) = 6 Variance of X, Var(X) = 62…

Q: P(x) 0.645 1. 0.297 0.052 0.005 0.001 0.000 2345

A: We have to use following formulae , Standard deviation : σ = ∑( x - μ)2p(x) Where , μ is mean μ =…

Q: The number of computers sold per day   at a local computer store are 0 , 1 , 2 , 3 , 4 and its…

A: Given: Probability distribution for number of computers sold per day at a local computer store. The…

Q: The net weight of a can of salmon is a random variable with a mean of 6.21 ounces and a standard…

A: Solution

Q: Suppose a random variable, x, arises from a binomial experiment. Suppose n = 8 and p = 0.62 (Must…

A: Given data, n=8 p=0.62

Q: The green turtle migrates across the Southern Atlantic in the winter, swimming great distances. A…

A: X~N( μ , ?)   μ=2200 , ?=625   Z-score =( x - μ )/?

Q: Suppose X is a normally distributed random variable with a mean of 9.00. If the probability that X…

A: Obtain the value of the standard deviation of X. The value of the standard deviation of X is…

Q: Service time for a customer coming through a checkout counter in a retail store is a random variable…

A: Given Information: Means μ1=μ2=0.5 Standard deviations σ1=σ2=1.0 Sample sizes n1=11, n2=19 Required:…

Q: find the probability that the mean time of a sample of 15 Americans who shower will be less than 12…

A:

Q: Suppose X is a random variable with a mean of 10 and a variance of 100. suppose Y is a random…

A:

Q: Americans spend an average 12.2 minutes in the shower. If the standard deviation of the variable is…

A:

Q: The weight of goods shipped in containers of a certain size is a normally distributed random…

A: 65% containers have net weight 498 tons 45% containers have net weight 52 tons Mean and standard…

Q: Determine the binomial distribution for which the mean is 4 and variance 3 and find its mode.

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Q: A random variable has a longnormal distribution with mean 10 and variance 4. Calculate the…

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Q: are two counters in a store, nj = 47 customers in the first line and n2 = 49 customers in the second…

A: Service time for a customer coming through a checkout counter in a retail store is a random variable…

Q: A random variable X is normally distributed. It has a mean of 229 and a standard deviation of 23.…

A: It is given that the random variable X is normally distributed with mena 229 and standard deviaton…

Q: For a normally distributed random variable the standard deviation is 3.7 what is the mean if 10% of…

A: Given that, σ=3.7 Consider that 10% of the distribution is less than 31.

Q: Find the probability that the difference between the mean service time for the shorter line X₁ and…

A:

Q: Suppose X is a normally distributed random variable with a mean of 9.00. If the probability that X…

A:

Q: Weight of goods shipped in containers of a certain size is a normally distributed random variable.…

A:

Q: Service time for a customer coming through a checkout counter in a retail store is a random variable…

A: Given Data: Let us consider the given data, Mean μ=3.5Standard deviation σ=3.5n1=2n2=13 To Find: The…

Q: Assume the random variable X has and expected value of 30 and a standard deviation of 8 and the…

A: Given: E [X]= 30 sd [X] = 8 E [Y] = 50 sd [Y] = 14 Z = 6X-3Y

Q: A normally distributed random variable has a mean of 449. If a score of 433 lies two standard…

A: Given: μ=449 A score of 433 lies two standard deviations below the mean, it means that, μ-2σ=433

Q: Service time for a customer coming through a checkout counter in a retail store is a random variable…

A: Solution-: Given: Service time for a counter coming through a checkout counter with means…

Q: Service time for a customer coming through a checkout counter in a retail store is a random variable…

A: