0, 0.25x +0.5, 0.5x +0.25, 1 Find P(X < 1.3). F(x)= x<-2 -2

Q: The joint probability distribution of two random variables X, Y is given in the table below. Y=-4…

A: y=-4 y=-2 y=0 y=2 y=4 total x=0 0.02 0.07 0.11 0.03 0.08 0.31 x=2 0.00 0.11 0.09 0.12 0.00…

Q: A set of random variables, x, and their corresponding probability, p(x), is tabulated below: P(x)…

A:

Q: If X is a discrete uniform random variable ranging from 1 to 8, find P(X > 1).  a. 0.7500 b. 0.8750…

A: It is given that X is a discrete uniform random variable ranging from 1 to 8.

Q: The marginal distributions of two random variables X and Y, together with some values of their joint…

A: Solution-: We have following table:   Y=1 Y=2 Y=3 Total X=1 - 0.08 - 0.20 X=2 - 0.32 - 0.80…

Q: Let X have a normal distribution with μ= 100 and σ=20. Which two values of X is the central 70%…

A: Given information- Population mean, µ = 100 Population standard deviation, σ = 20 We have to find…

Q: from the probability distribution, find the mean and standard deviation for the random variable,…

A:

Q: The probability distribution of a random variable X is shown as follows: 1 3. 4 P(X=x) 0.1 0.4 K 0.1…

A:

Q: What is the variance of X? Var(X) = What is the variance of Y? Var(Y) =

A: The joint probability distribution of X and Y is:                                Y X 50 60 80…

Q: Given that z is a standard normal random variable, find z for each situation (to 2 decimals). Use…

A: Given that,z is a standard Normal variable with a mean is 0 and sd is 1.

Q: 2

A: a. The probability distribution is shown below,  x 1 2 3 4 5 p(x) 115 k15 k5 414 k15 To find…

Q: Find the joint probability distribution of x and y. Find the marginal probability distribution of x.

A: The variable X indicates unemployed and variable y indicates employed.

Q: 2 0.1 0.1 0.2 What is E(X | Y = 0), E(X | Y = 1), E(X|Y=2) ?

A:

Q: The probability distribution function of a random variable is given in the following tab X = x, P(X…

A: A probability distribution is an expression that associates each outcome of a statistical experiment…

Q: x is a random variable with the probability function: f(x) = x/6 for x = 1, 2, or 3. The expected…

A: Here X is discrete random varibale with probability density function, f(x) = x/6      for x = 1, 2,…

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

A: Solution-: From given joint probability distribution table of two random variables X and Y we find,…

Q: Probability distribution function of discrete random variable X is given as follows. Which of the…

A: Given probability distributionThe variance of discrete random variable X is calculated using the…

Q: Indicate whether the variable is a discrete or continuous random variable: how many candies are in…

A: The variable is a characteristic that can be measured. A discrete variable takes the finite…

Q: Calculate the mean and variance of the weight of the package B. Determine the probability that the…

A: It is given that X follows Uniform(a = 45, b = 70).

Q: The marginal distributions of two random variables X and Y, together with some values of their joint…

A: Solution-: We have following table:   Y=1 Y=2 Y=3 Total X=1 - 0.21 - 0.7 X=2 - 0.09 - 0.3…

Q: The following table represents the joint probability distribution of the number of letters dropped…

A: From the given information, The pmf table can be expressed as;   Y=2 Y=3 Y=4 Y=5 P(X=x)   X=0…

Q: A random variable X has a probability distribution function as follow: X P(X=x) 0.3 15.2 12.5 1 15.5…

A:

Q: table in such a way that X and Y are dependent random variables. Y= -3 Y=-1 Y=0 X=-2 0.01 0.10 X=-1…

A: Given that ; A discrete two dimensional random variable table is given  By using marginal formula…

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

A: From the provided information, Value x of X P (X = x) 1   2 0.24 3 0.17…

Q: Y 1 2 4 8. 16 |P(y) 0.05 0.10 0.35 0.40 0.10 Construct the cumulative distribution function.

A:

Q: The joint probability distribution of two random variables X, Y is given in the table below. Y=-4…

A:

Q: The diserete reukan variable X has the probability distriution as shows A. 2 B. 1 C 3 D. 0 8. A. 4.5…

A:

Q: P(X) a) Mean. b) Variance. c) p(x + 1). 0.20

A: Answer:- Given probability distribution table-  x 0 1 2 3 4 5 P(x) 0.20 0.25 0.15 0.10 0.20…

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: The random variable X has the following probability distribution: X 1 3 P(x) 0.05 0.25 0.35 k The…

A:

Q: The marginal distributions of two random variables X and Y, together with some values of their joint…

A: Solution-: We have following table:   Y=0 Y=1 Y=3 Total X=1   0.06   0.60 X=3   0.04   0.40…

Q: What is the expected value of X? E(X) = || What is the expected value of Y? E(Y) =

A: The question is about joint prob. distribution Given :   To find : 1 ) E ( X ) 2 ) E ( Y )

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 probability distribution for the random variable, x, is x:2, 2.5,3.0,3.5,4.0 ,4.5 and P(x):0.07,…

A:

Q: In the linear model, R2 is: OA. a regular random variable. OB. an observable fixed number.

A: The regression analysis is a statistical procedure that allow us to find the linear association…

Q: e probability that a house in an urban area will be burglarized is 3%. If 37 houses are randomly…

A: Given, n is 37 , p is 3% = 0.03 By using binomial distribution.

Q: The probability distribution for the random variable,x, is x: 2, 2.5,3.0,3.5,4.0,4.5 and…

A: The variable x denotes the random variable.

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: The value of E(X) for the dizerete random variable Xhaving tihe following probability distribution:…

A: We have to find E(x)...

Q: What value of the x axis marks the top 25% of the distribution?

A: Given:  Let x be a normally distributed random variable with the following parameter: mu=125…

Q: The marginal distributions of two random variables X and Y, together with some values of their joint…

A: Independent event : The events  A and B are independent  if P( A and B ) = P(A)*P(B)

Q: Find P(XS3) if the cumulative distribution function for the random variable X is: 0, x<-1, 0.25,…

A: From the given information, let X be a random variable having the cumulative distribution function…