IV. Exercises: Find the Mean, variance and the standard deviation of the following probability distribution. x p(x) P(x) x.p(x) 0.238 0.290 0.177 4 0.158 0.137 Find: p=? o? = ? O = ? 23

Q: A. Complete the table below and find the mean, variance and standard deviation of the following…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: values is the 90th percentile of the t-distribution with 10 degrees of freedom? a. 1.363…

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Q: a. What is the distribution of X? X ~ N(18, 1) b. What is the median giraffe height?___________…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: The random variable x represents the number of credit cards that adults have along with…

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

Q: Q3: Let i be the observed mean of a random sample of size n from a distribution having mean u and…

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

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

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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: 1. P(X) X · P(X) X - 4 (X – µ)² (X – µ)² · P(X) 2 1 3 10 1 3 10 What is mean of the probability…

A: Given, X P(X) X.P(X) X-μ X-μ2 X-μ2.P(X) 0 15 0 0-1.3=-1.3 1.69 0.338 1 25 25 1-1.3=-0.3 0.09…

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

A: mean=E(X)=∑X.P(X)

Q: j) What is the probability that X is within 1 standard deviation of its expected value?  k) What is…

A:

Q: ppose Y follows binomial distribution with mean=20 and variance =7, what is the values a ccess, p?…

A:

Q: d) What is the expected value of X (E(X))? e) What is the expected value of X2? f) What is the…

A: Since there are multiple parts; only 1st 4 parts are solved.

Q: The accompanying table shows the probability distribution for x, the number that shows up when a…

A: mean=E(X)=∑x.P(x)

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: 3 Let Y~ N (4; o?1,) with and o = 3. Y'Y (a) What is the distribution of o2 (b) Calculate the mean…

A: In

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A: Given :

Q: In the following situations, indicate whether you’d use the normal distribution, the t distribution,…

A: a. The population is normally distributed, and you know the population standard deviation: Since the…

Q: B. In the procedure of computing the Variance of a distribution, we squared the deviations. What is…

A: B. While computing the variance of a distribution, we square the deviations and divide it with count…

Q: Find the mean and standard deviation for the following probability distribution. x P(x) 6 0.41 7…

A: Given,

Q: Find the mean, variance, and standard deviation for the probability distribution below: X P(x) 0…

A: Things that we will use to solve this problem Σ P(x) = 1  E(X) = Σ x P(x)  Var(X) = E(X2) - [E(X)]2…

Q: Q4/A:The following data represent the number of damaged pieces of spare parts for the production of…

A:

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

A:

Q: X• P(X) X2 X² · P(X) X P(X) 0.04 1 0.38 0.11 3 0.07 4 0.40

A: Solution-: We have following table: X P(X) 0 0.04 1 0.38 2 0.11 3 0.07 4 0.4 We…

Q: a. What is the probability that a jet engine will last less than 12 months before needing to be…

A: Here AS PER POLICY I HAVE CALCULATED FIRST 3 SUBPART ONLY  PLZ REPOST FOR REMAINING PARTS

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: Complete the table below and find the mean, variance and standard deviation of the following…

A:

Q: Complete the table below to find the mean, variance and standard deviation. Round all values to 3…

A: Given See the handwritten solution

Q: The table below shows the probability distribution of a random variable Y. Y P(Y) 11 0.7 12 0.1 13…

A:

Q: c)      Determine the standard deviation σ of x

A: x p(X) xp(x) (x-xbar)^2 p(x)*(x-xbar)^2 0 0.8 0 0.0625 0.05 1 0.15 0.15 0.5625 0.084375 2 0.05…

Q: Q3: Let i be the observed mean of a random sample of size n from a distribution having mean u and…

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

Q: Which of the following does not belong to the steps in finding the variance of probability…

A: Variance : A applied mathematics measure of the dispersion between values in an exceedingly…

Q: 2) A t-distribution has a variance known to be 1.25. What is the degrees of freedom for this…

A: We want to tell you which one is the correct choice.

Q: Q4/4:The following data represent the number of damaged pieces of spare parts for the production of…

A:

Q: Refer to the probability distribution shown below. X 1 3 P(X) 1/8 3/8 3/8 1/8

A: Standard deviation(σ)=E(X2)-E(X)2E(X)=∑X.P(X)E(X2)=∑X2.P(X)

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

A:

Q: What is the standard deviation of the probability distribution below? x P(X = x) 10 .27 20 .28 30…

A:

Q: a. Obtain the cdf of X. b. What is P(X ≤ .5)? c. Using the cdf from (a), what is P(.25 < X ≤ .5)?…

A: we have the pdf, f(x) = 90x8(1-x)= 90(x8-x9) for 0&lt;x&lt;1 we want to find, a. Obtain the cdf of…

Q: ACTIVITY 3: Find the mean, variance and the standard deviation of the following probability…

A: Given information- We have given the probability distribution for X.

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

A:

Q: For what model are the following expressions the cumulative probability distribution for response?…

A: Given that,  ξi= α+β1xi1+.......βkxik+εi Here α is the intercept. βi's are coefficients of Xi's.  εi…

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

A:

Q: 8. What is the correct expression of the integral of the probability function of a normal…

A: A continuous random variable X is said to follow the normal distribution with parameters μ and σ2 if…

Q: 8. What is the correct expression of the integral of the probability function of a normal…

A: The option (c) is the correct answer.

Q: Use the table below to find the percentage of data items in a normal distribution that lie a. below…

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A: Given data is  x 0 1 2 3 4 5 probability 0.15 0.29 0.25 0.18 0.10 0.03

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

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

Q: The following probability distribution represents the number of people living in a Household (X),…

A: To Find:To find the expected value (Mean), the variance and the standard deviation.