Let x represent the number of times a customer visits a grocery store in a 1-week period. Assume this is the probability distribution of x. Find the expected value of x, the average number of times a customer visits the store.   X 0 1 2 3 P(x) 0.1 0.4 0.4 0.1

Q: A study has shown that the probability distribution of X, the number of customers in line (including…

A: The formula of Standard deviation is,

Q: Five males with an X-linked genetic disorder have one child each. The random variable x is the…

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

Q: A survey asked 863 people how many times per week they dine out at a restaurant, A probability…

A:

Q: Let the variable X be someone's disease status X = D then someone has strep throat X = Dc then…

A: The random variable  denotes the disease status of someone.The random variable denotes test result…

Q: P(x) A sociologist randomly selects single adults for different groups of three, and the random…

A: Solution: The probability distribution is  x P(x) x2 x*P(x) x2×P(x) 0 0.094 0 0 0 1 0.333 1…

Q: Write the values of 'a' for which the following distribution of probabilities becomes a probability…

A:

Q: x is a normally distributed random variable with a mean of 3 and a variance of 4. Find the…

A: Given that X follows a normal distribution with mean=3 and variance=4. So standard deviation=4=2We…

Q: Assume that 11% of Douglas College students are left-handed. Suppose you randomly select 100…

A: Given that n= number of observation= 100 p= probability of success= 11%=0.11 since each trial is…

Q: Use the following formulat to create a distribution and see whether it is a probability distribution…

A: We have given that  P(X) = x/(x+2)  for x = 0, 1, 2

Q: The following table lists the probability distribution of the variable x which represents the number…

A: Given data, x                       0                1                  2                      3…

Q: P(x) x*P(x) 0.10 2 0.10 3 0.15 4 5 0.25 0.10 0.10

A: Given that a ballet instructor is interested in knowing what percent of each year's class will…

Q: Find the probability distribution. (Round your answers to six decimal places.)  Random variable, x…

A:

Q: Five males with an X-linked genetic disorder have one child each. The random variable x is the…

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

Q: Five males with an​ X-linked genetic disorder have one child each. The random variable x is the…

A: From the provided information, The probability distribution table can be constructed as: X 0…

Q: A random number X has the following probability distribution: x P(X=x) 0 .2 1 .2 5 .1 10 .3 y .2…

A: Given Data: Expected value: E(X)=10 The expected value of the given distribution is,…

Q: pieces of spare parts for the production of a company and the probability distribution of the number…

A: Given that  X 0 1 2 3 4 P(x) 0.02 0.20 0.30 0.10 0.08

Q: P(x) Five males with an X-linked genetic disorder have one child each. The random variable x is the…

A:

Q: Researchers studying the effects of a new diet found that the weight loss over a one- month period…

A: Note:- "Since you have posted multiple questions, we can provide solutions only to the first…

Q: For the random variable X defined by the probability function below, answer the following questions.…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: randomly selected to gather data in the hours spent per week edule of STATPRO. The table below shows…

A: Solution

Q: enote the number of broken eggs in a randomly selected carton of one dozen e y | 1 2 3 4 P(y) 0.60…

A: Given that  y= Number of broken eggs in a randomly selected carton of one dozen eggs. z= The number…

Q: w. Determine if the random variables are statistically independent considering f (2, 1).

A: here given ,  joint distribution of x and y  two variables are statistically independent when f(x,y)…

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: Five males with an X-linked genetic disorder have one child each. The random variable x is the…

A: The probability is the chance that an event is likely to happen. It never takes negative values.…

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: P(x) O 0.029 ive males with an X-linked genetic disorder have one child each. The andom variable x…

A:

Q: For the probability distribution, find a. X b. P(y> 2) c. F(y = 6) d. Du 0.05, 0.10, f(y)= 0.15,…

A: Note:- Since you have posted a question with multiple subparts we will provide solutions only to the…

Q: On a popular app, users rate hair salons as 1, 2, 3, 4, or 5 stars. Suppose a rating is randomly…

A: given data, p(X=1)=0.25p(X=2)=0.19p(X=3)=0.09p(X=4)=0.21p(X=5)=0.26we have to find out the given…

Q: Suppose x is a normally distributed random variable with µ = 15 and o = 2. Find each of the…

A: Gdfhb

Q: company wants to evaluate its attrition rate, in other words, how long new hires stay with the…

A:

Q: Let X be the number of students who show up for a professor's office hour on a particular day.…

A: The given probabilities are p(0)=0.10, p(1)=0.30, p(2)=0.20, p(3)=0.15 and p(4)=0.25.

Q: Five males with an X-linked genetic disorder have one child each. The random variable x is the…

A: According to the given information, we have The probability distribution table is given.

Q: Five males with an X-linked genetic disorder have one child each. The random variable x is the…

A: Mean(μ)=E(X)=∑X.P(X)E(X2)=∑X2.P(X)Variance(σ2)=E(X2)-(E(X))2Standard deviation(σ)=E(X2)-(E(X))2

Q: If a random variable X ∼ Exponential(1). Find the distribution of Y = X/λ.

A:

Q: The probability distribution for X = number of births in a day at a hospital is as follows. Births,…

A: We have to find correct answer..

Q: Five males with an X-linked genetic disorder have one child each. The random variable x is the…

A: The given data is,00.02810.15620.31630.31640.15650.028

Q: The following table shows the probability function for the random variable X, number of wingbeats…

A: Given that  Probability mass function of X is  x 6 7 8 9 10 f(x) 0.05 0.10 0.60 0.15 0.10

Q: The city of Fairview runs a swim league for teens aged 13 to 17. Suppose a swimmer from the league…

A: x p(x) 13 0.28 14 0.21 15 0.18 16 0.18 17 0.15

Q: hildren among the five who inherit the​ X-linked genetic disorder. Determine whether a probability…

A: Given data, ​x P(x) 0 0.033 1 0.161 2 0.306 3 0.306 4 0.161 5…

Q: Suppose that the random variable x, shown below, represents the number times. P(x) represents the…

A: