Find the expected value for the random variable. 9. 12 15 18 21 P(z) 0.11 0.25 0.39 0.16 0.09 E(z) = (Type an integer or a decimal.)

Q: 3 Part (a) In words, define the Random Variable X. the number of audits the IRS does each year the…

A: Here AS per policy I have calculated 3 subparts  The chance of an IRS audit for a tax return with…

Q: You and your friend carpool to school. Your friend has promised that he will come pick you up at…

A: X~U(1,13)

Q: Mlal Fandom variable, use the binomial probability table to find the probabilities below. a. P(x<11)…

A: The pdf of binomial distribution is,     The objective is to find the required probabilities.

Q: A random variable Yhas a probability distribution given in the following table. Y 5 7 11 13 P(Y = y)…

A: Given: The pdf of Y is Y 5 7 9 11 13 P (Y =y) 0.12 0.08 0.28 0.20 0.32

Q: Find the expected value of the random Vanable. 100 200 300 400 P(X = x) 0.18 0.23 0.23 0.36 O A. 297…

A: Given,   E(X)=?

Q: 1 3 Total P(X=x) 0.20 0.30 0.40 0.10 1 What is the value of pmf f(2)? [ Select ] What is the value…

A:

Q: The random variable x represents the number of phone calls an author receives in a day, and it has a…

A: It is given that X : number of phone calls an author receives in a day

Q: Consider the discrete random variable X given in the table below. Calculate the mean, variance, and…

A:

Q: Find the expected value for the random variable XX. xx -4 1 4 6 12 P(X=x)P(X=x) 0.15 0.23 0.2 0.2…

A: given: x -4 1 4 6 12 P(X=x) 0.15 0.23 0.2 0.2 0.22 The expected value for the random…

Q: X 3 4 5 6 7 8 9 10 P(X) 0.1 0.23 0.43 0.15 0.03 0.03 0.02 ? (a) Is X a discrete or continuous random…

A: Let  be the number of rooms in a randomly chosen owner-occupied housing unit in a certain city.The…

Q: You and your friend carpool to school. Your friend has promised that he will come pick you up at…

A: A random variable X~U(3,  11) f(x)=111-3      ;    3≤X≤11 f(x)=18      ;   3≤X≤11

Q: Let x = -1, 0,1, 10 be a random variable with a uniform probability distribution. Calculate the…

A: From the given information we want to find the mean , variance and standard deviation for the…

Q: Find the mean of the discrete random variable X whose probability distribution is X 1 p(x) .30 2 3 4…

A: Given data is x 1 2 3 4 5 6 p(x) 0.30 0.25 0.15 0.05 0.10 0.15

Q: Find the expected value for the random variable. 6 8 10 12 P(y) 0.4 0.4 0.08 0.12 V 7.84 9 07.76…

A: The given random variable, y 6 8 10 12 P(y) 0.4 0.4 0.08 0.12 We have to find the expected…

Q: Consider the discrete random variable X given in the table below. Calculate the mean, variance, and…

A:

Q: Consider the discrete random variable X given in the table below. Calculate the mean, standard…

A:

Q: Solve the Z as a standard normal random variable. P ( - c < Z < c ) = 0.9164

A: From the provided information, P (-c &lt; Z &lt; c) = 0.9164

Q: nd the expected value for the random variable. Z P(z) 9 12 15 18 0.15 0.21 0.38 0.17 (z)=(Type an…

A: Given that  Probability distribution table is.  z 9 12 15 18 21 P(z) 0.15 0.21 0.38 0.17 0.09

Q: Let the random variable X be the number of rooms in a randomly chosen rented unit in San Jose,…

A:

Q: Consider the pmf for a discrete random variable X below. What is E(X)=p? 3 0.1 P(x) 0.2 0.2 0.5…

A:

Q: Calculate the mean, variance, and standard deviation of x.

A: Given,the discrete random variable x,and the probability distribution table is…

Q: Find the expected value of each random variable. а) х 15 30 45 P(X = x) 0.4 0.1 0.5 b) x P(X=x) 1 7…

A: From the provided information, The probability distribution table are as follow: a) X 15 30…

Q: Find the expected value for the random variable. 9 12 15 18 21 0.14 0.24 0.37 0.18 0.07 Z P(z) E(z)…

A:

Q: Q4. TheBinomial random variable, T~ B(20,0.4). Find the Pr( T= 8). С. 0.36 ww A. 0.12 В. 0.18 D.…

A: Let T be the random variable from Binomial distribution with probability (p)=0.4 and sample size (n)…

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

A:

Q: Find the expected value of the random variable. 3 0.3 X P(x) 2 0.2 What is the expected value? 4 5…

A: According to the given information, we have The value of X : 2, 3, 4, 5 The probability distribution…

Q: Find the expected value of each random variable shown. а) х 2 3 4 P(X = x) 0.2 0.5 0.3 b) x 100 200…

A: The expectation is given as E(X)=∑ixip(xi) a) The expectation of X is E(X)=2×0.2+3×0.5+4×0.3=3.1

Q: Find the expected value of the random variable. X POX=X X)/ 0. P(X=x) 0.5 O 1.00 O 1.20 O 0.80 O…

A: x p(x) 0 0.5 1 0.2 2 0.3

Q: Let Z be a standard normal random variable. Calculate P(-1.064 < Z).

A: Given that Z follows standard normal distribution. Then we will use standard normal table to…

Q: 5/1/24, 11:52 PM A L Solve the problem. 17) The accompanying table shows the probability…

A: xP(x)x*P(x)x2*P(x)10.10.10.120.220.440.8830.160.481.4440.10.41.650.170.854.2560.251.59…