From the past experience, 30% of the stocks are profitable. What is the probability that 5 of the 7 stocks are profitable? Find the mean and standard deviation of the random variable X, where X is the number of profitable stocks out of 7.

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Note: If the post contains multiple sub parts in a question only allow to do first three subparts as…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

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Q: For a normal population with µ = 100 and σ = 9, what is the probability of obtaining a sample mean…

A: According to the given information, we have Mean = 100 Standard deviation = 9 Sample size = 25

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Q: for a binomial distribution, the mean is 4 and n=8. What is p for this distribution?

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Q: For a binomial distribution, mean = 4 and variance 4/3. Then the value of p is

A: For a binomial distribution ,                                            Mean       = n×p…

Q: The standard deviation of a binomial distribution is 4, then the variance of the distribution is а.…

A: We know that, Variance=(standard deviation)2 Here standard deviations =4

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: As per our guidelines we are suppose to answer only three subpartsGivenMean(μ)=172000standard…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

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

Q: The average cost per household of owning a brand new car is P5,000. Suppose that we randomly…

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Q: What is the probability of a sample mean being between z-values of -1.58 and 0.79?

A: We have to find  the probability of a sample mean being between z-values of -1.58 and 0.79?

Q: Find the variance of the probability distribution for the histogram shown.

A: From the given histogram we can create the probability distribution table. Xi probability, p(x)…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: As per our guidelines we are suppose to do only three subparts GivenMean(μ)=176000standard…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: X follows a Normal distribution with mean = 182000 and S.D = 39000 Then z=(x-mean)/SD =…

Q: A final exam in math 160 has a mean of 73 with a standard deviation of 7.8. if 24 students are…

A: Given,Mean(μ) =73standard deviation (σ) =7.8sample size(n) =24Let 'x' be a final exam in math their…

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A: Given: Population mean μ=145 Population variance σ2=144 Sample size (n) = 97 As per Central limit…

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Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Given: Mean = $152000 Standard  deviation  = $12000 Sample size  = 45

Q: Q5. The mean and standard of the weights of identical concrete specimens are 150 and 45 lb…

A: GivenMean(μ)=150standard deviation(σ)=45sample size(n)=50

Q: Let X be the number of successes in a fixed number of repeated trials and let p be the probability…

A: Let X be the number of successes in a fixed number of repeated trials and let p be the probability…

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Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Determine the distribution of the random variable X follows. The distribution of the random variable…

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

Q: For a population mean of 35, a sample was taken with a mean value of 40 and sample size equal to 30.…

A: Given data,μ=35σ=20x=40n=30P(X>40)=?

Q: In a Binomial experiment where the number of experiments is N = 50 and the probability of the event…

A: Given: N=50p=0.4q=1-p=0.6 The normal approximation of binomial distributiion states that,  If…

Q: From the past experience, 70% of the stocks are profitable. What is the probability that 5 of the 8…

A:

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. Based on that, the mean…

A: We have given that the mean 173000, standard deviation 32000 and sample size 13.   Note: According…

Q: In a certain country, the average age is 31 years old and the standard deviation is 4 years. If we…

A: From the provided information, Mean (µ) = 31 years Standard deviation (σ) = 4 years X~N (31, 4) Here…

Q: A racing car consumes a mean of 103 gallons of gas per race with a variance of 36. If 38 racing…

A: The probability of the sample mean would be greater than 101.5 gallons is 0.9382 and it is obtained…

Q: Find the standard deviation for the binomial random variable. Round to 4 decimal n= 90 Π= .60

A: For binomial distribution, the standard deviation is calculated as: σ=n⋅π⋅(1−π)

Q: In a Normal distribution, the average is 45 and standard deviation is 12. What is the probability…

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Q: The number of tickets purchased by an individual for Beckham College's holiday music festival is a…

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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: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Introduction: Define X as the random variable of interest here, denoting the annual salary of a…

Q: A. COMPUTE THE MEAN, VARIANCE, STANDARD DEVIATION OF THE PROBABILITY DISTRIBUTION THEN ANSWER THE…

A: Given: X 0 1 2 3 P(X) p0 p1 p2 p3 1) Mean: EX=∑i=1nxipi EX=0×p0+1×p1+2×p2+3×p3…

Q: find the variance of the binomial distribution for which n = 800 and p = 0.88

A: The variance of the binomial distribution is defined as: Var(X)=np(1-p)

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

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

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: As per our guidelines we are suppose to answer only three subpartsMean(μ)=178000standard…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

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

Q: Q3: The average number of bicycle accidents at on the road is 5 per week. 1- What is the probability…

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Q: This is a Statistics problem.  Are the random variables Z1+Z2 and Z1-Z2 the same? Do they have the…

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Q: In a Math test, the mean score is 45 and the standard deviation is 5. Assuming the scores are…

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Q: For a normal random variable with mean 19,500 and standard deviation 400, find a point of the…

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Q: Solve the problem. Assume that male Siberian huskies' weights are normally distributed with a mean…

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Q: Use your Ti-84 to find the mean and standard deviation of the discrete probability distribution…

A: We find the mean and standard deviation using the step by step procedure in Ti-84 calculator as…

Q: Determine the standard deviation of the random variable, B(600,0.4).

A: Here we need to find the standard deviation of the given binomial random variable.