i. Show that k = 1/6 ii. Find the mean of the probability distribution. ii. Find the variance of the probability distribution.

Q: D.elze t,30 PIZCH.3o

A: Given information- We have given the standard normal distribution. P (z < -1.30) We have to find…

Q: Find the probability using the normal distribution: P(z> 1.50).

A: We will use Standard Normal table to calculate the given probability.

Q: Find the variance and standard deviation of the probability distribution of random variable X if :…

A: Variance=EX2-E2(X)=12110+22110+32110+42110+52110+62110+72110+82110+92110+102110-1110+2110+3110+4110+…

Q: Suppose Y follows binomial distribution with mean =10 and variance of 7, what is the value of the…

A: We have to find out probabiity of success..

Q: Find the variance for a given probability distribution. x: 0, 22, 4, 6 p(x): 0.05, 0.17, 0.43, 0.35

A: Given: Probability distribution. The variance is obtained as below:…

Q: What is the Variance of a geometric distribution having parameter p-0.24? Select one: a. 4.167 b.…

A: We have find variance distribution...

Q: If   n =41  and    p=0.6  then the variance of the binomial distribution is

A: X~B(n,p)P(X=x)=nxpx(1-p)n-x                     x=0,1,2,3,...,nE(x)=mean=npvariance=np(1-p)

Q: Find the mean, variance and standard deviation for the probability distribution given below: X0 2…

A: mean=E(X)=∑X.P(X)

Q: P(x) x•P(x) | X2•P(x) 19 0.20 20 0.20 21 0.30 22 0.20 23 0.10 2.

A: Given that x P(X=x) 19 0.20 20 0.20 21 0.30 22 0.20 23 0.10 I want to find variance…

Q: FIND THE VARIANCE The number of items sold per day at a retail store, with its corresponding…

A:

Q: In 2019 about 45% of people watch over 3 hours of tv a week. Suppose 8 people were selected at…

A: It is given that n = 8 and p =0.45.

Q: If the mean of the Poisson distribution is 2, then the variance is .A 2 (1 – 22) .B 1 .C .D

A: Let X be a random variable following the Poisson distribution with the parameter λ. The probability…

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: Find the mean, variance, and standard deviation. ( Use both methods)

A: Answer: Mathematical Expectation EX: Let X be a discrete random variable taking values…

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: Find the variance of the binomial distribution for which n= 900 and p 0.89. I

A: Given that the parameters of binomial distribution are n = 900, p = 0.89

Q: The table below shows the probability distribution for X, where X represents the number of…

A:

Q: The number of cellular phones sold per day at the E-Cell Retail Store with the corresponding…

A: Given :

Q: Let X be a random variable with a mean of 50 and a variance of 64. Find: i. P(x< 52) ii. P(35 < X <…

A:

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: Find the mean, variance and standard deviation for the probability distribution given below:

A: Mean is the average value of the given observation. It is based on the all observation Standard…

Q: Find the variance and the standard deviation of the probability distribution. 3. 4 . 6. PN) 0.09…

A:

Q: e. Find the variance and standard deviation of the probability distribution of the random variable X…

A:

Q: The variance of a binomial distribution for which n = 100 and p = .20 is: 100 80 20 16

A: Variance=npq

Q: Find the variance of the binomial distribution for which n = 300 and p = 0.93

A:

Q: 16. The square root of the variance is equal to the a. Probability b. Standard Deviation c. Mean d.…

A: As per our guidelines we can solve first MCQ and rest can be reposted. Q.16 Solution-: The square…

Q: Find the a) mean, b) standard deviation and c) variance of the given probability distribution. 1)…

A: Solution-: We have given table: x P(x) 3 0.14 6 0.05 9 0.36 12 0.35 15 0.10 We…

Q: The number of jackets sold per week at a boutique shop is shown in the table, with the corresponding…

A: The formula to calculate mean, variance and standard deviation are :…

Q: a. Construct a probability distribution below. P(X) b. Calculate the mean, variance, and standard…

A: HERE from given information make probability distribution table and use it for mean and variance…

Q: Find the variance and standard deviation of each probability distribution. a. 2 3 P(x) 0.10 0.45…

A: V(X)=E(X2)-[E(X)]2 Sd(x)=√V(X)

Q: 3. Derive the variance of the F distribution.

A:

Q: Find the variance and standard deviation of the probability distribution of random variable X if…

A:

Q: The variance of a binomial distribution for which n = 100 and p = 20 is: O 100 80 20 O 16 A Moving…

A:

Q: The Mean for a Binomial Distribution is A. p В. q С. пр D. npq

A: X ~ B (n, p) P(X=x) = Cxn px(1-p)n-x  ; x=0,1....n                              0≤p≤1 ,  q=1-p n -…

Q: 9. If the variance of a discrete probability distribution is 6.02, what is the value of the standard…

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Q: An electronics store sells a particular model of a laptop computer. There are only four laptops in…

A:

Q: 2. Given the probability distribution, find the mean, variance, and standard deviation: -2 1 2 f(x)…

A:

Q: The number of students using the Math Lab per day is found in the distribution below. Find the…

A:

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: Find the mean, variance and standard deviation for the probability distribution given below: -3 10…

A:

Q: Consider the following probability distribution function of X and Y: 1 2 0.35 0.05 Y 0.15 0.45 Find…

A:

Q: Find the mean and standard deviation of this probability distribution

A: The mean is defined as Mean = E(X) = ∑x.px And E(X2) can be calculated as∑x2·px Then Standard…

Q: consider the following Probability Distribution for Sales table probability: .3 .24 .14 .21 .11…

A: Determine E(x) using the formula E(x)=p1x1+p2x2+…+pnxn.…

Q: Find the mean, variance and standard deviation for the probability distribution given below: -4 10…

A:

Q: Assume a binomial probability distribution has p = .60 and n = 200.a. what are the mean and standard…

A: Given: Number of trials (n) = 200 Probability of success (p) = 0.60

Q: Calculate the mean, variance, and standard deviation of a binomial probability distribution, using…

A: Given information- Since the given problem is of Binomial distribution. Here, Probability of…

Q: 1. Variable z representing the number of male teachers per Elementary school. 2 3 4 P(z) 40% 32% 11%…

A:

Q: For a Binomial Distribution the mean is 9 and variance is 3. What is the probability of failure? O…

A: For a Binomial Distribution the mean is 9 and variance is 3. What is the probability of failure?

Q: If x has the binomial distribution with mean 25 1 Find, P X<μ- 20). 5 and probability of success…

A:

Q: 2. The probability that a customer will buy 1, 2, 3, 4, or 5 items in a grocery store are 3 1 1 2 3…

A: First, it is required to find the mean of the probability distribution. The mean is computed by…