A discrete random variable can assume 4 possible values, as listed in the accompanying probability distribution.   x: -5 0 2 5     p(x): 0.20 0.30   0.10       (b) Find the mean of x using probability distribution p(x).

Q: Let the random variable Y have a geometric distribution with a mean of 3. The probability that…

A: From the provided information,Y have a geometric distribution with a mean of 3 that is Y~G(3)Since,

Q: A researcher surveyed the households in a small town. The random variable X represents the number of…

A:

Q: The probability distribution for the random variable x follows:   x f(x) 20 0.20 25…

A: Given data

Q: Find the variance for a given probability distribution. x: 0, 22, 4, 6 p(x): 0.05, 0.17, 0.43, 0.35

A: We have given that the probability distribution.

Q: The probability distribution of X is shown below. Find P(3).

A: Total probability of a probability distribution is  =1  So, P(1)+P(2)+P(3)+P(4)+P(5)=1

Q: x P(x) 0 0.05 1 0.05 2 0.15 3 0.75 Find the mean of this probability distribution.

A: 0 0.05 0 1 0.05 0.05 2 0.15 0.30 3 0.75 2.25

Q: The plot to the right shows the probability function of a random variable Z. Estimate the needed…

A: For the given plot Find P ( z >=3 or z =-1 ) = ? P ( z >=3 ) +P(  z =-1 ) = P( z = 3 ) + P( Z…

Q: Q/ The probability distribution of random variable X is: 3. P(x) 0.1 0.3 0.5 0.1 iTY-X+2X Find: 1.…

A: Given Y= X2+2X So we find Y for every X X 0 1 2 3 Y 0 3 8 15 P(Y) 0.1 0.3 0.5 0.1

Q: Q4: The random variable X has the probability distribution shown 1. 3 4 P(X = x) 7c 5c 4c 3c (1)…

A:

Q: In a game a die is thrown, and if 4, 5, or 6 comes up you win; otherwise for 1, 2, or 3 you lose.…

A: Outcome when a die is thrown : {1,2,3,4,5,6} 4,5,6 is symbol of win  1,2,3 is symbol of lose

Q: The discrete random variable X is the number of students that show up for Professor Jones' office…

A: We have given that, X is a discrete random variable i.e. number of students.   The probability…

Q: For a probability distribution X, if E(X) = 0.35 then E(3X-2) = Select one: O 1.05 O -1.05 O 0.95 O…

A: Assume that X is a random variable.

Q: Determine whether or not the distribution is a discrete probability distribution and select the…

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

Q: Four fair coins are tossed. X is the number of heads that occur. (1) Find the probability function…

A: Given that  Four fair coin are tossed  X=Number of heads n=4 , p=1/2=0.5 , q=1-p=1-0.5=0.5…

Q: Find the Mean of f(x), where f(x) = 6X+6. The probability distribution of a random variable X ; if X…

A: Mean is an average value around which the whole data set is concentrated.…

Q: The probability distribution of random variable X is given as follow: 2 4 5 f (x) 0.41 0.37 0.16…

A: We have to find correct answer..

Q: Let X be a random variable that can take the values 5, 9, or 13. And let f(x) be its probability…

A: Variance : Variance formula for the probability distribution is given by                  V(X) =…

Q: The random variable x is the number of houses sold by a realtor in a single month at the Sendsom's…

A: Given PMF of X. Now will using this pmf to find required information

Q: The random variable X has probability distribution given in the table below: X -1 0 1 2 3 P(X=x) b…

A:

Q: Suppose that the random variable xx, shown below, represents the number of speeding tickets a person…

A: As per the guidelines we are allowed to solve maximum of 3 subparts Please repost the question if…

Q: Let X be a random variable that can take the values 2, 9, or 13. And let f(x) be its probability…

A:

Q: The discrete probability distribution is given by k 2k 3k i. Show that k = 1/6 ii. Find the mean of…

A:

Q: The random variable X has the probability distribution given in the following table. 2 3 P(X = 1)…

A: Given problem Given that   Given that  E( X ) = 3.5 ∑X P(X) = 3.5 0.03 + 2a + 0.81 + 4b+ 5c = 3.5…

Q: Find mean (x)  ( round to two decimal places )   B. Find standard deviation of x ( round to two…

A: he following table shows the provided outputs of the discrete random variables, along with the…

Q: The random variable X, representing the number of nuts in a chocolate bar has the following…

A: As per the Bartleby guildlines we have to solve first question and rest can be reposted... Given…

Q: The random variable X represents the number of children per family in a rural area in Ohio, with the…

A: Define the probability distribution p(x) for random variable x. The probability distribution p(x) is…

Q: Find the mean of the random variable X with the given probability distribution. * 1 2 P(x) 0.34 0.25…

A: Given that  Probability mass  function of X  x 0 1 2 3 P(x) 0.34 0.25 a 0.20

Q: Q2: A random variable X has a mean = 8, a variance o² = 9, and an unknown probability distribution.…

A: It is given that:The random variable X has mean and variance as:

Q: A discrete random variable can assume 5 possible values, as listed in the accompanying probability…

A: From the provided information, x -5 0 25 P (x) 0.20 0.30 0.10