Given the following discrete probability distribution,   X P (x) 100 0.25 125 0.3 150 0.45   (a). Calculate the expected value of x. (b). Calculate the variance of x. (c). Calculate the standard deviation of x.

Q: Let X be the number of large screen TVs sold daily by a certain appliance retailer. The pmf p(x) of…

A:

Q: Calculate the standard deviation for the following probability distribution: X 1 2 3 4 P(x) 0.15…

A: The probability distribution of random variable x is given.

Q: he expected value/mean, the variance, and the standard deviation of the following ete) probability…

A: Let X be the random variable having probability distribution is, X -1 0 2 P(X=x)  0.2 0.2 0.6…

Q: Q.3. Consider the following discrete probability distribution: x P (x) 5 0.1 10 0.15 15 0.25 20 0.5…

A: Given, Discrete probability distribution  X P(X) 5 0.1 10 0.15 15 0.25 20 0.5

Q: Calculate the mean and standard deviation of the discrete probability distribution. 0 P(x) 0.027 X 1…

A: Mean(μ)=E(X)=∑X.P(X)E(X2)=∑X2.P(X)Variance(σ2)=E(X2)-E(X)2Standard deviation(σ)=E(X2)-E(X)2

Q: For the following probability distribution, find the expected value  E(x). x Pr(x) 1 0.1 2 0.4 3…

A: X PX 1 0.1 2 0.4 3 0.3 4 0.2

Q: The table below gives a discrete probability distribution. x | Pr{X = x} 0.2843 10 0.2149 0.1626…

A: The probability distribution of x is given.

Q: Given below is the probability distribution of the random variable X: 10 11 12 13 14 f(x) 0.4 0.3…

A: Given data is  X 10 11 12 13 14 f(x) 0.4 0.3 0.2 0.05 0.05

Q: a. Find the expected value of each discrete probability distribution. 7. 8. 10 P(x) 0.15 0.32 0.37…

A: As per our guidelines we are suppose to answer only one question. E(X)=∑X.P(X)

Q: x 100 125 150 Tete probability distribution. P(x) 0.25 0.30 0.45 a. Calculate the expected value of…

A: Solution

Q: Let the random variable X be the ounces of  soda in each can. Assuming that under normal  operation…

A: Given The data is as follows: X~Nμ=12.1, σ=0.2

Q: x = 1,2,3,4 f(x) = < c 0. otherwise So that the variable x represents the quantity produced of dates…

A: Given fx=2cx             x=1, 2, 3, 40                 otherwise Where x is the random variable…

Q: 20 0.25 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation…

A: It is given that the random variable X with a probability distribution in the tabulation form.

Q: Q.7 For an exponential distribution fx(x; µ) = {ue* x 20 where u >0 17 e.w. Write (Don't derive) (a)…

A:

Q: The following table is a probability distribution for the random variable x. X P(x) 5.0 25% 10.0 50%…

A: Given, X 5 10 15 P(X) 0.25 0.50 0.25

Q: Given the following discrete probability distribution, XP(x) 42 0.375 65 0.15 70 0.225 75 0.05 90…

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

Q: For the binomial distribution P(x) = C7,x(0.4)*(0.6)7-X, choose the correct histogram below and…

A:

Q: 7% of US adults have blood type O-negative. Suppose we take a random sample of 50 US a X represent…

A: Note: Please repost 2nd question as i can author only 1 question as per my policy. Given…

Q: Choose the correct histogram below. OA. P(x) 0.5 0.4- 0.3 0.24 0.1- 0- C. P(x) 0.5- 0.4- 0.3- 0.24…

A: It is given that the Binomial distribution is P(X) = 6Cx*(0.2)x(0.8)6-x

Q: P(x) 0.1 0.3 0.2 0.3 0.1 Find (?(?≥1) Find the expected value (mean) of ?.

A:

Q: A Poisson distribution with A = 5.2 and 3 < x < 6. Use the probability distribution identified above…

A:

Q: Q.3. Consider the following discrete probability distribution: P (x) 0.1 10 0.15 15 0.25 20 0.5 (a).…

A: We want to find the  (1) mean of random variables (2) mean of the pmf  (3) sd of the pmf

Q: Assume that the probability of a being born with Genetic Condition B is p=5/12. A study looks at a…

A: P(born with genetic condition) = p = sample size (n) = 584x = no. of volunteers with genetic…

Q: Calculate the expected rates of return for the market and Stock J. b. Calculate the standard…

A: here given data for market and stock . Probability distribution of Stock and market as given in…

Q: Given the following probability distribution, calculate the variance x P(x) 1 0.123 2 0.238 3 0.542…

A:

Q: The discrete random variable X has the following probability distribution: -10 0 10 p(x) 0.20 0.40…

A:

Q: The table below shows the probability distribution for a discrete random variable X. X 0 1 2 4 5…

A: According to the given information in this question We need to find the value of n and expected…

Q: Let X be a random variable with the following probability distribution: X -2 3 5 f(x) 0.5 0.2 0.3…

A: population mean : μ = E(x)

Q: The standard normal probability function is used to describe many different populations. Its graph…

A: Given that fx=13πe-x2/4.

Q: Q8. In the casino game roulette, the probability of winning with a bet on red is 0.5. Let X be the…

A:

Q: The probability distribution of y, the number of accidents per 10 days of a diversion road in…

A:

Q: The random variable X has the following probability distribution. -1 0 P(X=x) 0.20 0.50 0.30…

A: Consider the probability distribution:

Q: Find the mean and standard deviation for the probability distribution x P(x) 0.05 1.18 2.29 3.26…

A: See the handwritten solution

Q: In the following probability distribution, X represents the number of calls a telemarketer makes in…

A: a) The total probability is always 1.  Using that we get: P(X=175)= 1 -…

Q: Assume that the probability of a being born with Genetic Condition B is p=1/5. A study looks at a…

A: From the provided information, Sample size (n) = 971 Probability of a being born with Genetic…

Q: The probability distribution for X and Y is shown by the table. Find the marginal distribution…

A:

Q: variable with the following probability distribution. Value x of X P=Xx -20 0.10 -10 0.15 0 0.45 10…

A:

Q: Find the expected value E(X) of the following data, Round your answer to one decimal place. -6 -5 -4…

A: x-6-5-4-3-20.20.20.20.10.3

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.