Question 7 (2 points) Assume that X is a Discrete Random Variable with the Probability Distrib below: X 1 2 3 4 P(x) 0.73 0.09 0.17 0.01 Calculate the expected value of X. Express your answer rounded to two points.

Q: The discrete random variable Xhas the probability distribution given by: 7 9 12 13 15 P(X=x) u/2…

A: The discrete random variable x has the probability distribution function given by, X=x 7 9 12 13…

Q: X and Y are random variables with the following joint PMF. |-9 |-2 |-2 |-7 0.2 0.1 |0.04 10 0.1 0.15…

A: Introduction :-  We have to find,  Missing probability for joint probability mass function of X and…

Q: 4. The continuous random variable X has a lognormal distribution if the random variable Y = In(X)…

A: import numpy as np sample = np.array([5.75, 5.73, 5.57, 5.67, 5.42, 6.02, 5.85, 5.39, 5.50, 5.37,…

Q: The X chance variable is continuously distributed smoothly between 2 and 8. The expected variance of…

A: X~U(2,8) we want to find the variance of x  V(X)= ?

Q: (1 point) Find the expected value for the random variable: X 3 P(X) 0.28 0.14 0.11 0.47 E(X) = %3D

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Q: ill in the  P(X=x)  values to give a legitimate probability distribution for the discrete random…

A: Rules of probability distribution: The probability values of each value of x should be between 0 to…

Q: Find the missing probability for the random variable 3 from the following probability distribution.…

A:

Q: Let X be a geometric random variable with parameter p = 0.1 and range space x 1 Evaluate th habilib:…

A: Let X be the geometric random variable with parameter p=0.1 PX=x=1-px-1p, x=1,2,3,...…

Q: 1x and Y are independent random variables with E(X) = 3, E(Y) = 2, Var(X) = 2, and = 4. Find the…

A: Given that  E(X)=3    , E(Y)=2    , Var(X)=2   , Var(Y)=4 X and Y are independent then…

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: 2. The random variable X has the following probability distribution. 2 6 .4 X P(x) -3 .2 Find the…

A: Answer:- Given the probability distribution of the random variable X is  X -3 2 6 8 P(x) 0.2…

Q: L10Q1.The probability distribution of a random variable is given below. X 0 1 2 P(X) 2 a a 3 a Find…

A: X 0 1 2 P(X) 2 a a 3 a

Q: True or false: P(X-7)=P(Y=3).

A: Let X be a binomial random variable with n=10 and p=0.3. Let Y be a binomial random variable with…

Q: The annual premium for a ​$5,000 insurance policy against the theft of a painting is ​$250. If the​…

A: The annual premium for a ​$5,000 insurance policy against the theft of a painting is ​$250. If the​…

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: Suppose the random variable Y counts the number of heads in 10 tosses of a biased coin with P(H) =…

A: Y is a random variable that can take on values from 0 to 10 with probability P(Y=y) =E(Y) =6 and…

Q: Suppose X is a random variable with the following distribution: xi 1 2 5 10 pi 0.4 0.3 0.2…

A: the expected value of X is given by the formula EX=∑ixipi substitute the values…

Q: (G) Determine the proportion of the distribution that iscontained within the interval (u - 30, µ +…

A: (G) Empirical rule (68 – 95 – 99.7 rule): For a bell shaped distribution (normal) the empirical rule…

Q: A random variable takes the values 3,4,5. p(X = 3) = 0.4 and E(X) = 3.8. p(X < 4/X < 5) = %3D Select…

A:

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

A:

Q: The joint probability distribution of two random variables X, Y is given in the table below. Y=-3…

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Q: Let X be a random variable with probability distribution as follows: 3 f (x) | 1 1 1 3 Find the…

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Q: if the probability distrobution for the random variable X is given in the table  what is the…

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Q: The annual premium for a $5,000 insurance policy against the theft of a painting is $200. If the…

A: From the given information, for the painting of the cost $ 200, the annual premium of the insurance…

Q: A city metro train on the black line runs every 6 minutes during the time between 10 am and 12 pm.…

A: Note : Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the…

Q: 8. A television station sells advertising in 15-, 30-, 60-, 90-, and 120-second blocks. The…

A: Given that: Probability distribution table of X: Length (in seconds), X Probability, P(X) 15…

Q: her or not the table is a probability distribution ôf å discrete random variable. Explain fully a.…

A: Note: As per Bartleby’s guideline for more than one questions only first is to be answered please…

Q: Find the expected value for the random variable: X 1 2 4 P(X) 0.21 0.25 0.11 0.43 E(X) =

A:

Q: A discrete random variable has probability distribution: x= 1, 2,3,4, 5 and P(x) =0.12 ,0.15, 0.23,…

A: The standard deviation can be calculated by taking square root of the variance of X. And the…

Q: Find the expected value for the random variable:     X     1       2       4       6   P(X)   0.16…

A: Given data,   E(X)=?

Q: A random variable X has the following distribution: X P(X=x) -1 0 1 .3 .5 2 Let Y=X². Find the…

A: The given probability distribution of variable X is as follows:x-101P(X=x)0.30.50.2The random…

Q: Consider the table below gives the probabilities of the distribution of random variable X. Value of…

A: Given: b = f(1) = 0.2 c = f(2) = 0.06

Q: The discrete random variable Xhas the probability distribution given by: 7 12 13 15 P(X=x) u/2 0.05…

A: As per the requirement solving (b), (c), and (d) part. Given: x P(x) 7 u/2 9 0.05 12 0.35…

Q: Compute the expected value for X.

A: here  given  joint distribution of X and Y  here E(X) = ∑X.p(X)

Q: The probabilities of all the values of a random variable X must: OA. average to a small and negative…

A: Random Variable: In probability theory, a random variable is a variable whose values depend on…

Q: If the mgf of a random variable x is M(t) = (4/9 + 5e' /9)7 , then x has a binomial distribution…

A: We have given that  Moment genrating function mgf.M(t) X~binomial ( n , p ) Given binomial mgf.