A random variable X has this probability distribution where the expected value is p= 2.4. Find a and b 4 3. 2 0.10 0.20 0.10 b 0.20 POO a

Q: A certain brand of cars captured 16.8% of the market. If 3 cars are selected at random, the…

A: ∈(X) = ΣX.P(X)

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: 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

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A: Obtain the probability that a test will take between two and six minutes. The probability that a…

Q: (Discrete Random Variable) Based on his experience, a librarian observed that the number of books…

A:

Q: Find the expected value of the random variable g(X) = X where the discrete random variable X has the…

A: The probability distribution is fx=3x23x133-x      , x=0,1,2,3

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A:

Q: In a litter of ten kittens, five are female. You pick two kittens at random. a) Create a probability…

A: Given In a litter of ten kittens, five are female. Therefore five are male kittens. n= sample size=2…

Q: A random variable Yhas a probability distribution given in the following table. Y 5 7 9. 11 13 P(Y =…

A: Let Z=17.2-3Y. Then, V(Z)= V(17.2-3Y). As, variance remains unchanged with change of scale, we have,…

Q: An electronics store sells a particular model of a laptop computer. There are only 4 laptops in…

A: Given, x 0 1 2 3 4 5 P(X=x) 0.1 0.4 0.2 0.15 0.10 0.05 x*P(x) 0 0.4 0.4 0.45 0.40 0.25

Q: Sue Anne owns a medium-sized business. Use the probability distribution below, where X is a random…

A: We have to find expected value for given data..

Q: Consider the probability distribution function of a random variable Y, f(y)=cy2; 0<y<2 a) Compute…

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

Q: Find the standard deviation. Houses Sold (x) Probability P(x)

A:

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

A:

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

A: Given :  Probability distribution of X X 0 1 2 3 P(X) 0.4 0.3 0.2 0.1

Q: If the probability distribution for the random variable X is given in the table, what is the…

A: According to the given information, we have The probability distribution table is given by, xi -5…

Q: The composite probability distribution for the random variables X and Y is given in the image:…

A:

Q: The probability distribution of the random variable X is given in the following table. Find P(1 < X<…

A: P(1&lt;X&lt;4)=?

Q: The table shows a discrete probability distribution: Find: a) The value of m b) (3P(x) < 5) c)…

A: Note: According to Bartleby Expert guideline, we can answer only first three subparts of a question…

Q: The discrete random variable X is the number of passengers waiting at a bus stop. The table below…

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

Q: Q 5) A die with six faces is rolled. The discrete random variable "X" represents the outcomes on the…

A: given distribution is x 1 2 3 4 5 6 P(X=x) a a a b b 0.3 table represents probability…

Q: 2. A coach has 6 players that will join track and field. The random variable that is being studied…

A: Given Information: X 1 2 3 4 5 6 P(X) 0.40 0.24 0.19 0.1 0.05 0.02 To find the probability…

Q: Which formula gives the probability distribution by the following random variable 3, 4, and 5 with…

A:

Q: Find the expected value for the random variable x whose probability function graph is displayed…

A: From the graph we see that: X Probability 1 0.25 2 0.2 3 0.15 4 0.1 5 0.3 Total 1…

Q: P(X=x) -2 0.30 -1 0.15 0.20 0.20 0.15 ) Explain two reasons why the above distribution is a valid…

A: Given: x P(X=x) -2 0.30 -1 0.20 0 0.20 1 0.20 2 0.15

Q: The probability distribution shown below describes a population of measurements. X      |       0…

A: The expected value formula is, EX=∑iXPx In the formula X is random variable, and Px is probability…

Q: A random variable, y, has a known probability distribution given by :y=2, 4, 6,8,10 and P: 0.17,…

A: y P(y) 2 0.17 4 0.23 6 0.2 8 0.3 10 0.1

Q: The probability distribution for the discrete random variable X is described by the table shown…

A: Given that  Probability mass function of X is  x -2 -1 0 1 2 4 P(x) 0.10 0.10 0.30 ? 0.05 0.05

Q: A data scientist tracked how many cups of coffee she drank every day at work over the course of a…

A:

Q: If the probability distribution for the random variable X is given in the table, what is the…

A:

Q: Senior high school students are randomly selected to gather data on the hours spent per day playing…

A: Given data is  Length (in hours) Probability 0 0.012 1 0.062 2 0.281 3 0.326 4 ? 5…

Q: A random variable X has the following probability distribution : 4 5 0-1 0:2 0.4 02

A:

Q: A 4. What are the expected value and the variance of the probability distribution below? x P(X = x)…

A: (4)   Obtain the value of mean.   The value of mean is obtained below as follows:

Q: An insurance policy costs $120 and will pay policyholders $9,000 if they suffer a major injury…

A: Given Information:  Cost of an insurance policy = $ 120  Amount paid to policy holders if suffered…

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

A:

Q: The discrete random variable X is the number of passengers waiting at a bus stop. The table below…

A: From the provided information, The probability distribution table is as follow: X 0 1 2…

Q: Suppose a random variable x is best described by a uniform probability distribution with range 2 to…

A:

Q: The discrete random variable X is the number of passengers waiting at a bus stop. The table below…

A: Given that, The discrete random variable X is the number of passengers waiting at a bus stop. X 0…

Q: A student offered random people 5 cookies total. Let X be the number of cookies that the person…

A:

Q: An insurance policy costs $120 and will pay policyholders $9,000 if they suffer a major injury…

A: Given, pay of $120 major issue $9000 minor issue $3000 1 in every 2088 policyholders will suffer a…

Q: A) Complete the Table x P(X = x) x · P(X = x) 0 0.3   1 0.4   2     3 0.2     B) Find the…

A: Given, X 0 1 2 3 P(X=x) 0.3 0.4   0.2

Q: If the probability distribution for the random variable X is given in the table, what is the…

A: Solution-: Let, X- be the random variable We find E(X)=?

Q: Given the probability distribution below.Find P(X = 1). Calculate the expected value E(X). X P(X)…

A: P(X=0) = 0.25 P(X=2) = 0.32 P(X =3) = 0.28

Q: Vehicles pass through a junction on a busy road at an average rate of 200 per hour. Determine the…

A: poisson dist

Q: 2. Toss a pair of dice. Let X denote the sum of numbers on the two dice. Find the expected value of…

A:

Q: Calculate the expected value of X, E(X), for the given probability distribution. 2 4 6. 8 6. 12 P(X…

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Q: The table provides the probability model for the random variable X = the number of %3D clothing…

A: Given Information:

Q: The random variable Z has the probability distribution shown below If  E(Z) =4 2/3find the values…

A: Given Information: The probability distribution of the random variable Z is given as: z 2 3 5 7…

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

A: