Consider the following probability distribution of the random variable X. x f(x) 1 0.009 2 0.034 3 0.092 4 0.170 5 0.222 6 0.212 7 0.149 8 0.076 9 0.036   2 The variance of x is _______. a 3.276     b 3.147     c 3.023     d 2.904

Q: For a random variable with the given probability distribution function. 3 5. f(x) 0.23 0.15 0.25…

A: Given data,   P(X≥2)=?

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

A: (a)   Obtain the probability that a randomly selected person has received four tickets in a…

Q: Consider the following probability distribution. What is the probability that Y is not less than 2?…

A: Given that  Probability distribution.  Y 0 1 2 3 4 5 P(Y) 0.009 0.376 0.371 0.167 0.061 0.016

Q: We randomly select four cards from a standard deck of 52 cards and count X, the number of Diamonds…

A:

Q: A discrete random variable X has the following probability distribution: Value of X 1 2 3 4 5 6…

A:

Q: A discrete random variable X has the following probability distribution: 3. 4. P(x) 0.10 0.25 0.40…

A: Let X be the random variable having probability mass function is,  X 1 2 3 4 5 P(x)  0.10 0.25…

Q: The following table lists the probability distribution of a discrete random variable x: 1 2 3 4 P(x)…

A:

Q: Consider the following probability distribution. Xi P(X = xi) 10 0.06 13 0.33 16 0.23 19 0.38 The…

A: Expected value: x P(X=x) x*P(X) 10 0.06 0.6 13 0.33 4.29 16 0.23 3.68 19 0.38 7.22…

Q: For a random variable with the given probability distribution function. 1 3 4 f(x) 0.23 0.15 0.25…

A: Required probability is P(X≥2)

Q: Calculate the variance of the following probability distribution: -3 -2 -1 1 3 f(x) 0.17 0.14 0.11…

A:

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

A: Solution: From the given information, the probability distribution of X is

Q: 1 2 3 4 P(X = x) 0.05 0.05 0.15 0.20 0.25 0.30 II. Construct the probability distribution for each…

A:

Q: Suppose the variance of X is 2.0091. Which of the following is(are) TRUE?

A: Here Given the distribution for the number of calls received  by the switchboard operator in One…

Q: 13) The HR manager of a company has developed a probability distribution of the number of absent…

A:

Q: The table below is a probability distribution of a discrete random variable X. Find its mean. 1 2 3…

A:

Q: The random variable X has the following probability distribution x 0 1 2 P(x) 0.2 0.6 0.2…

A: The random variable X has the following probability distribution is, x 0 1 2 P(x)…

Q: Find the expected value E(X) of a random variable X having the following probability distribution.…

A: The probability distribution is shown in the table given in the problem. The expected value of the…

Q: Let X be a random variable with the follow Value x of X P(X=x) -2 0.25 -1 0.15 0.35

A: We have to find expected value...

Q: A discrete random variable X has the following probability distribution: -4 -3 -2 -1 2 3 0.05 0.075…

A:

Q: 10. The random variable X, representing the number of chocolate chips in a cookie, has the following…

A:

Q: 12. Given the following discrete probability distribution, P (x) 42 0.375 65 0.15 70 0.225 75 0.05…

A: (a) Obtain the expected value of X. The expected value of X is obtained below as follows : The…

Q: Given the discrete random variable X: What is the probability distribution of X if X~ B(2, )? P(X 0)…

A: Explanation of the answer is as follows

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

A: Solution x P(x) 0 0.2775 1 0.2546 2 0.2388 3 0.1736 4 0.0449 5 0.0106 6+ 0.0000…

Q: The number of telephone calls arriving at an exchange during any given minute between noon and 1:00…

A: Consider the table:

Q: A random variable x has the following discrete probability distribution:    x f(x) 0 0.13 1…

A: Given discrete probability distribution table: x f(x) 0 0.13 1 0.17 2 0.22…

Q: X.P(X) P(X) 0.10 21 4 0.23 6. 0.25 8. 0.36 10 0.06 В. Do the following. Find the variance and…

A:

Q: The random variable X, representing the number of errors per 100 lines of software code, has the…

A:

Q: 3. The discrete random variable Y has the following probability distribution: Y 25 26 27 28 29 P(Y)…

A:

Q: a) The following Table lists the probability distribution of a discrete random variable x: 1 2 4| 5…

A:

Q: a. A random variable X has the following probability distribution: 0 x 18 5x 18 10 x 18 15 x 18 20 x…

A:

Q: 14. Calculate the variance of the following probability distribution function (pdf) for the discrete…

A:

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: Consider the following probability distribution. X 1 3 4 6 P(x) 0.02 0.05 0.17 0.35 0.22 0.17 0.02…

A: Formula Used: For expected value of x. E(x) = ∑xP(x) For standard deviation of x. SD(x) = VAR(x) For…

Q: Let X be a discrete random variable with Poisson distribution, and with a standard deviation of 2.3.…

A: Given that  Standard deviation of Poisson distribution = √λ = 2.3 Variance of Standard deviation = λ…

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: A random variable X has the following probability distribution. Values of X -1 1 Probability 0.28…

A:

Q: The following data are the number of hours spend by a student who plays online games for a week.…

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: 1 The expected value of x is

A: Here given discrete probability distribution of x

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

A: Since, you have you have posted a question with multiple subparts we will solve first three subparts…

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

A: Variance=EX2-E2(X)=32730+5213+721330-3730+513+713302=31.6666666667-5.42=2.5066666667

Q: Find the variance for the probability distribution X 4 0 1 2 3 P(X=x) 0.04 0.18 0.34 0.23 0.21…

A: Solution

Q: Consider the following probability distribution function of X and Y: 1 2 0.35 0.05 Y 0.15 0.45 Find…

A:

Q: (a) Given probability distribution function for discrete random variable X as below: 2| 4 | 6 | 8…

A:

Q: Let X be a random variable with the following probability |-6 3 9 distribution: 1 f(x) 4 1 1 2 4…

A: Given X is random variable with the probability distribution: x -6 3 9 f(x) 14 12 14 and…

Q: Find the mean of the following probability distribution? xx P(x)P(x) 0 0.2172 1 0.2251 2 0.2099 3…

A:

Q: X is a random variable with probability distribution given in the following table X = x P(X=x) |-1…

A: Given that  Probability distribution table X -1 1 3 5 P(X) 0.1 0.3 0.4 0.2   We know that…

Q: Q1 (a) Given probability distribution function for discrete random variable X as below: 2 4 8 10 P(X…

A: Q1(a)  Let X be the random variable having probability mass function is,  X 2 4 6 8 10 P(X)…

Q: Consider the following probability distribution of the random variable x. 15 20 25 30 f(x) 0.11 0.19…

A: