We will calculate the variance of the following probability distribution 0 0.35 P(X=x) Enter your answer for each of the following as a decimal correct to 2 decimal places Calculate EX EX] = Number Calculate ELX2 EX²) = Number Hence calculate the variance Var(X) = Number 2 0.29 6 0.36

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A: The objective of this question is to calculate the expected value, variance, and standard deviation…

Q: The time spent waiting in the line is approximately normally distributed. The mean waiting time is 6…

A: Solution

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A: Given that, Mean = 3915 Variance = 429025

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A:

Q: A)lf a grown man is picked at random and his QT interval measured, what is the probability of the…

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Q: (i) probability distribution (ii) Mean (iii) Variance.

A: It is known that the sample space corresponding to the experiment of throwing two dice contains 36…

Q: The daily demand for a certain product is approximately normally distributed with mean 50 and a…

A: P(X=45)=?

Q: Suppose that "duration of any attempt in an effort to score (X)" by either team in college soccer…

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Q: Consider the experiment of rolling 2 dice and define Y to be the A.V. that record the sum of the…

A:

Q: Tom works for a fruit company and found that the weight of pineapples are normally distributed with…

A: From the information, mean is 500 and standard deviation is 100.

Q: There is a 5k race, time was normally distributed with a mean of 28 minutes and a sd of 5 minutes.…

A: It is given thatMean, μ = 28Standard deviation, σ = 5Z-Score, Z = ( X - μ )/σwhere, Z be the…

Q: Find the mean and variance for the probability distribution given by f(x)= 2x k(k+1)* -,x=1,2,3,...k

A:

Q: Your company's monthly income average is 25000 $ with a standard deviation of 2000 $, while average…

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Q: The nap time for female lecturers of a graduate faculty follows normal distribution with mean of 25…

A: GivenMean(μ)=25standard deviation(σ)=5

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: elevator that is designed to hold 4300 pounds. What is the probability that the load (total weight)…

A:

Q: The length of human pregnancies from conception to according to a distribution that is approximately…

A: Given that.   X~N( μ , ?)   μ=266    , ?=16  , n=6   Z-score =( x - μ )/?

Q: A die is tossed twice. Getting a number greater than 4' is considered a success. Find the mean and…

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Q: If X is distributed as a normal distribution with a mean value of 10 and a variance equal to 3 and Y…

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Q: X is the number of red marbles that Suzan has in her hand after she selects five marbles from a bag…

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A: Mean = 74.0 Standard deviation = 12.5 Sample size =

Q: For a normally distributed random variable mean is 46 and standard deviation is 13. Find the Z score…

A: Answer: From the given data, Population mean (μ) = 46 Population standard deviation (σ) = 13

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

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Q: The quality control manager at a company manufacturing company believes that the mean life of a…

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Q: Two students are taking a college entrance exam and known to have a normal distribution of scores.…

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A: NNote: this probability value calculated from standard normal distribution table

Q: The mean of Binomial distribution is 3 and variance is. Find P(1 < x < 6)

A:

Q: X is the number of red marbles that Suzan has in her hand after she selects 5 marbles from a bag…

A: The objective of this question is to calculate the expected value, variance, and standard deviation…

Q: Assume that the square footage of a residential house in the US is normally distributed with a…

A: According to the given information in this question  We need to find the probability that it will be…

Q: Q2: Suppose the current measurements in a strip of wire are assumed to follow a normal distribution…

A: Mean()=10Variance()=4standard deviation()==2