fx) = {1-Ixl , Fx) = { |x] <1 , otherwis then what is the variance of X?

Q: If each of the observatiobs a1,a2,a3 is ibcreasedby x ,where x can be pos or neg How will variance…

A: Variance is independent of change of origin but not on scale.  It mean if we increase or decrease by…

Q: It is the measure of association between two random variables obtained as the expected value of the…

A: Given info: It is the measure of association between two random variables obtained as the expected…

Q: Compute the variance of the number of rainy days in this month (a month=30 days).

A: Let p be the probability that it rains on any day. Given that p = 2/3 Let X denote the number of…

Q: Firdaus works as a forestry officer. From his experience, he can walks along the designated trail in…

A: Given that Firdaus works as a forestry officer. From his experience, he can walks along the…

Q: If the range of X is the set {0,1,2,3,4} and given that each outcomes are equally like to occur,…

A:

Q: Suppose you play a game that you can only either win or lose. The probability that you win any game…

A: Given,n=20p=0.65A random variable X~Binomial(n=20 , p=0.65)P(X=x)=20x0.65x0.3520-x  ;…

Q: A random group of students was selected from a large student conference to analyze their class in…

A:

Q: What is the maximum error one can expect to make with probability 0.95 when using the mean of a…

A:

Q: Suppose that X1 and X2 are random variables with zero mean and unit ariance. If the correlation…

A:

Q: then the value of variance of X is

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A manufacturer of sunflower oil uses machines to distribute liquid ingredients into bottles that…

A: Provided information is, a manufacturer of sunflower oil uses machines to distribute liquid…

Q: Suppose that Xand Yare random variables such that Var(X) = 9, Var() = 4, and the correlation is…

A: We know that is X and Y be two random variables then,  Var(X - Y) = Var(X) + Var(Y) - 2 Cov(X, Y)…

Q: One sample with n =8 has a S2 = 6 and a second sample n = 8 scores has a S2 = 10.  If the pooled…

A:

Q: The values of a discrete random variable can be plotted on a number line with space between each…

A: # The values of discrete random variable caan be plotted on number line with space between…

Q: When conducting a t-test for independent samples we have 2 ways of computing the variance. One way…

A: Let X and Y are two different samples. The sample size of X data is n1 with sample mean (x̄) and the…

Q: Explain the Covariance functions as applicable to random processes.

A: The autocovariance function CX(s,t) of a random process {X(t)} is a function of two times s and t.…

Q: If the random variable x is distributed through the Binomial(n,0.5), if the mean of x =3,then the…

A: We have to find variance of x...

Q: A lot of 75 washers contains 6 defectives whose variability in thickness is unacceptably large. A…

A:

Q: Describe Decomposition of the variance in Y?

A:

Q: A manufacturer of cigarettes wishes to test the claim that the variance of the nicotine content of…

A: Given, The degrees of freedom is obtained as- The hypothesis to be tested here is- This is a…

Q: Suppose Bob rolls a fair die 100 times and X = number of 1's he gets. What is the variance of X?

A: Given: n = 100 P( obtaining a 1 on die) = 1/6 = p X = number of 1's obtained

Q: The random variable X is the number of fields on a data entry form with 28 fields that have an…

A:

Q: The number of passengers on a bus follows a negative binomial distribution with parameters r = 2 and…

A:

Q: A manufacturer of sunflower oil uses machines to distribute liquid ingredients into bottles that…

A: Given, μ=8n=35x=7.91σ=0.03=0.1732α=1-0.99=0.01 The hypothesis to be tested here is- H0:μ=8H1:μ≠8…

Q: Suppose that the number of customer that enter a bank in an hour is a Poisson random variable, and…

A: Let X be poison random variable P(X=0)=0.05 variance of X=?

Q: Cynthia, Mary, Mika, and Sallieof Hu’s Ur Dedi Cerveza Corp. conducted a survey on their 12-ounce…

A: Confidence interval for population variance is calculated using the sample variance and chi square…

Q: During a month in Adana, it rains with probability 2/3 each day, independently of every other day.…

A: The probability of raining each day is p = 2/3

Q: What is the distribution of the random vector (X1 +2X2, X - X2)?

A: Given that X follows tri-variate Normal distribution.

Q: Each value in a sample has been transformed by multiplying by 3 and then adding 10. If the original…

A: Given information: The variance of the original sample is 4. Each value in a sample has been…

Q: The range of the random variable X is {30, 1, 2, 3, a} , where a is unknown. If each value is…

A:

Q: If X is a continuous random variable, what is the value of X that will be exceeded 30% of the time,…

A:

Q: Let X be an exponential random variable with mean 1 and X, a gamma random variable with mean 2 and…

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: Two students sit for a university final exam whose scores are known to be normally distributed. The…

A: If raw scores are given by X= 63, Y= 93 Then z score for x is given by, Z= (X- mu)/sigma Where mu is…

Q: Firdaus works as a forestry officer. From his experience, he can walks along the designated trail in…

A:

Q: Suppose bob flips a fair coin 100 times.Let X be the number of heads he gets.What is Variance of X?

A: For a fair coin the probability of getting head= 0.5X=number of headsn=sample size=100p=probability…

Q: In a college,there are 20 major subjects and 40 minor subjects,these are divided into 20 groups of 2…

A: Probability is a branch of mathematics or statistics which is basically deals with the chances of…

Q: Let X and Y be independent random variables. Suppose X has variance 2 and let Y have variance 5.…

A: Given Data: Var(X)=2 Var(Y)=5

Q: The number of passengers on a bus follows a negative binomial distribution with parameters r = 2 and…

A: From the given information, The number of passengers on a bus follows a negative binomial…

Q: Suppose that a random variable X can take the values (0, 1, 2 ,3,4,5,8,9} all with equal…

A: Given: Probability distribution of X x p(x) 0 0.125 1 0.125 2 0.125 3 0.125 4 0.125…

Q: During a month in Adana, it rains with probability 2/3 each day, independently of every other day.…

A: Let p be the probability that it rains any day in a month. Given that p = 2/3 Let X represents the…

Q: If the variance of all newly-born babies are 1.25 pounds, can we say that newly-born baby boys are…

A:

Q: 32% of TCNJ engineering majors are females. For a group of 50 engineering majors, find the variance…

A: The binomial distribution is a discrete probability distribution in which there are a fixed number…

Q: One sample has n = 10 scores and a variance of s2 = 20, and a second sample has n = 15 scores and a…

A:

Q: Y¯ be the means of

A: Given:

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.