QUESTION 23 The probability distribution of the number of daily network blackouts is given by 1 3 p( x) 0.4 0.2 0.4 Find the variance of the number of network blackouts.

Q: Question 1.. If a random variable follows a Poisson distribution and has an expected value of 25,…

A: Given : Poisson distribution with mean, λ = 25 The standard deviation of a Poisson process is the…

Q: Question 1: A random variable X is distributed nomally with mean 508 and standard deviation 32. For…

A:

Q: Question 2 a. The probability distribution function of random variable X is given below. X 4 6. 8…

A:

Q: QUESTION 13 A random sample of size n=64 is drawn from a normal population with a variance of 16.…

A: Given: n=64,σ=4,α=1-0.90=0.10

Q: QUESTION 5: Find the cumulative distribution function for the following probability distribution. X…

A: As per our guidelines we can solve first question and rest can be reposted. Q.5 Solution-: We have…

Q: Question 1 > A manufacturer knows that their items have a normally distributed length, with a mean…

A: Given  data   μ=17.2  inches   σ=4.9  inches  normal  distribution

Q: QUESTION 3 If a random sample of size 15 is drawn from a normally distributed population with mean…

A: Given : X follows t distribution.

Q: The human body weight is normally distributed, with a mean of 61 kg and variance of 25 kg2. What is…

A:

Q: Question 4 (a) At a certain community college, the time that is required by candidates to complete…

A: We want to find the probability  A) P(56<x<60) Note: According to bartleby experts question…

Q: 3.1 Consider the discrete random variable (Y) with the following probability distribution: P (y=y)=…

A: Probability distribution of a random variable gives the probability at each possible value of the…

Q: Question 2: A discrete random variable X has a probability distribution function given by P(X = x) =…

A:

Q: QUESTION 15 A random variable X has a normal distribution with mean 132 and variance 36. If x = 120,…

A: Given data: Mean = 132 X = 120 Variance  = 36

Q: We study the random variable T, which has a Normal distribution with mean -4.2 and variance 3.61.…

A: GivenA random variable T~Normal(μ=-4.2,σ2=3.61)Mean(μ)=-4.2Variance(σ2)=3.61standard…

Q: Question 7 If the heights of women are normally distributed with a mean of 64 inches and a standard…

A:

Q: The salaries at a corporation are normally distributed with an average salary of $19,000 and a…

A: The provided information are: Population mean (µ) = 19000 Population standard deviation (σ) = 4000…

Q: QUESTION 17 The variance of a binomial random variable's distribution equals 8.40, for given values…

A: Introduction :-  Given that X follows Binomial distribution with n = 40 and p = 0.20 We have to…

Q: Question 14. Suppose that random variable X follows a Poisson distribution with parameter A = 4,…

A: The mean and the variance of the Poisson distribution is equal to   Now,

Q: Question 8 The distribution of Bachelorʹs degrees conferred by a university is listed in the table.…

A: We want to find the probability that a randomly selected student with a Bachelorʹs degree majored in…

Q: Question 5. The number of traffic accidents per year in a given highway follows a Poisson…

A: Let X denote the no.f traffic accidents per year in a given highway and it follows Poisson…

Q: Question 9 X is a random variable with mean and variance H and of, The standardized form of X is 2 =…

A:

Q: Question 6 The "true" variance is also the population variance O True O False

A: Variance is always the suitable method to determine the variation between data points. And it…

Q: Question 1: Calculate mean and standard deviation of the probability distribution, given information…

A:

Q: Question 3: CUI Attock has three telephone lines. A caller gets a busy tone if all the lines are in…

A:

Q: QUESTION 6 A normally distributed random variable X with variance o2-256 and PO> 130)=0.9251. Then…

A: Given Sigma^2=256 P(X>130)=0.9251 We want to find the value of mean

Q: Question 8 The cumulative distribution function of the random variable X is given  (d) What is ?{?…

A:

Q: QUESTION 1 Ale insurance salesman sels on the average 3 life insurance policies per week. Use…

A:

Q: QUESTION 1 What is the Variance for the following discrete probability distribution? P(X) 0.14 0.71…

A: Formula : variance :

Q: QUESTION 4:   If the average yield of cucumber acre is 800 kg, with a variance 1600 kg, and that…

A:

Q: QUESTION 10 If a random sample of size 14 is drawn from a normally distributed population with mean…

A: Given data: n = 14 Mean = 43.5 Standard deviation = 2.7 To find: What is the probability that the…

Q: QUESTION 1 A normally distributed random variable X with variance o=256 and P(X> 130)-0.6554.Then…

A: Determine the value of mean of X. The value of mean of X is obtained below as follows:

Q: QUESTION 8 If X be a normally distributed random variable with variance of 25 such that P(X > 20) =…

A: Given information Variance = 25 Standard deviation ? = √25 = 5 P(X>20) = 0.0778 P(X ≤ 20) = 1 –…

Q: QUESTION 5: Find the cumulative distribution function for the following probability distribution. x…

A: ( 5 ) Find CDF

Q: QUESTION 29 A random variable X has a normal distribution with mean 132 and variance 36. If x = 120,…

A:

Q: The management of a supermarket wants to adopt a new promotional policy of giving free gift to every…

A: We know that, the expenditure for all customers, X ~ N(400, 900) or, X ~ N(400,302) or, Z = (X -…

Q: Question 2 2.1. Let Y,, Y, .., , be a random sample of size 4 from an exponential with parameters…

A: Introduction:  Exponential Distribution:  A continuous random variable follows Exponential…

Q: QUESTION 12 What sample size should be used in a study conducted to estimate the average monthly…

A: From the provided information, Population standard deviation (σ2) = 1.96 Confidence level = 99%…

Q: An analogue signal received at a detector, measured in microvolts, is normally distributed with mean…

A:

Q: QUESTION 2 А. The table below shows the probability distribution of the likelihood of the number of…

A: Note: Since you have posted questions with multiple subparts we will solve the first three questions…

Q: QUESTION 5 A random sample of size n = 25 is drawn from a normal population with a variance of 16,…

A:

Q: QUESTION 3 The number X of refrigerators sold per day at a local appliance store is shown in the…

A:

Q: QUESTION 24 A normally distributed random variable X with variance o2=256 and P(X> 130)-0.9251. Then…

A:

Q: QUESTION 6 The probability distribution of the random variable X is given in the following table.…

A: (6) Obtain the variance of X. The variance of X is obtained below as follows:   The formula to…

Q: Question 1: A random variable is distributed normally with mean 3200 and standard deviation 800.…

A:

Q: Question 1 In an election, suppose that 60% of voters support a school levy increase. If we poll…

A:

Q: QUESTION 6 The probability distribution of the random variable X is given in the following table.…

A: Given X            0        1         2        3       4 P(X=x)  0.13  0.29  0.25  0.18  0.15

Q: QUESTION 15 A random sample of sizen 36 is drawn from a normal population with a variance of 25,…

A:

Q: QUESTION 18 Consider a binomial random variable where the number of trials is 12 and the probability…

A: We have to find mean and standard deviation for binomial experiment.