1. The probabilitythat a cellular phone company kiosk sells Xnumber of new phone contracts per day is shown below. Find the mean and variance for this probability distribution. OUTCOME (x) 10 PROBABILI TY 0.4 0.3 0.1 0.15 0.05 P(x) 80 6.

Q: (8). Consider the probability distribution for the random variable X shown here: -10 0 5 P(X=x) 3 .5…

A: The objective is to find the standard deviation of X.

Q: 1) The random variable X, representing the number of nuts in a chocolate bar has the following…

A: As per our guidelines we are suppose to answer only one question1)Given  X 1 2 3 4 5 P(X) 1/10…

Q: What is the probability that a randomly selected item will weigh between 6 and 10 kg? A. 0.9104 B.…

A: Answer:-  Here, option C is correct answer.

Q: Suppose X~B(n=3 ; P=2/3). Use the binomial distribution formula to compute the following: The…

A: Given information X ~ B(N=3,p = 2/3) In Binomial Distribution Variance is given by So, Option b is…

Q: Given the following probability distribution:      X      P(X)      10    0.3      20    0.1…

A: The average of the sample is defined as the ratio of the sum of the numbers to the total number. By…

Q: 4. Compute the mean and standard deviation of the random variable with the given discrete…

A: x p(x) -3 0.10 0 0.17 1 0.36 3 0.37

Q: For which of the following situations would a binomial distribution not be a reasonable probability…

A: We have given that the statements about to the binomial distribution. Here, need to find out the…

Q: 3. The random variable X, representing the number of errors per 100 lines of software code, has the…

A:

Q: The following is the probability distribution of the number of accidents in one day. X 7 8 9. 10 11…

A:

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

A:

Q: 4.42 For a mound-shaped, symmetric distribution, what is the probability that x falls into the…

A:

Q: 3. The number of suits sold per day at a department store is shown in the table, with the…

A: The mean of a discrete random variable X is denoted μx or, when no confusion will arise, simply μ.…

Q: 1. The random variable X, representing the number of defective missiles when 3 missiles are fired,…

A: Introduction: The random variable X represents the number of defective missiles on firing 3…

Q: 3. The number of cars sold per day at a local car dealership, along with its corresponding…

A: Given

Q: Your company, Sonic Video, Inc., has conducted research that shows the probability distribution,…

A: As per our guidelines we are suppose to do only first question

Q: 1. Results of a study conducted to determine the water consumptions in number of cubic meters of…

A:

Q: Find the mean, variance, and standard deviation for the probability distribution below: X P(x) 0…

A: Things that we will use to solve this problem Σ P(x) = 1  E(X) = Σ x P(x)  Var(X) = E(X2) - [E(X)]2…

Q: 1) Determine if the following data correspond to a probability distribution. If not explain whi-+ ww…

A: Conditions for discrete probability distribution: The following requirements should be satisfied for…

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

A:

Q: In a convenient store, the number of tellers (X) busy with customers at 12:00 noon varies from day…

A:

Q: 2. The random variable X, representing the number of cherries in a cherry cake, has the following…

A:

Q: Find expected value and variance of X random variable whose distribution is as follows:. X 1 2 P(x)…

A: For a discrete random variable X, the expected value (or mean) of X, is a weighted average of the…

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

A: Consider the table:

Q: 2 The probability distribution for the random variable Y is given in the following table. bidy 1 3 4…

A:

Q: Find the mean and the variance of the discrete random variable X, whose probability distribution is…

A:

Q: (D) If a variable has a Binomial distribution, then the number of possible outcomes depends on the…

A: (D) we know that,   For a binomial random variable there will be only two possible outcomes success…

Q: y -2 1 4 -1 0.2 0.1 0.2 3 0.1 0.2 0.1 0.1

A: We need to find P(X=5)

Q: The following is the probability distribution for calls arived at a switchboard of one of the…

A: Given that Let X denotes the number of calls and P(X ) is the probability corresponding to X  We…

Q: 1 (a) The Monthly expenditure of family is normally distributed with mean riyals 100 and variance…

A: 1)Given data,μ=100σ2=64σ=8

Q: 3. Find the variance and standard deviation of the probability distribution of a random variable X…

A: Variance=EX2-E2(X)=22920+42120+5215+32310-2920+4120+515+33102=10.3-32=1.3

Q: 3. The number of adults living in homes on a randomly selected city block is described by the…

A:

Q: * Q1) a- if the percentage infection of a disease in a country was 0.005. Thus, using binomial…

A: From the provided information, The probability of infection of a disease in a country (p) = 0.00005…

Q: 3. Given the following discrete probability distribution, x P (x) 42 0.375 65 0.15 70 0.225 75 0.05…

A:

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: Find E(X), Var(X), and the standard deviation of X, where X is the random variable whose probability…

A:

Q: 1. The probabilitythat a cellular phone company kiosk sells Xnumber of new phone contract.s per day…

A: Hey, since there are multiple questions posted, we will answer the first question. If you want any…

Q: The following is the probability distribution for calls arrived at a switchboard of one of the…

A: X 2 7 12 16 P(X) 0.19 0.32 0.22 x

Q: 2. Suppose the random variable x follows a normal distribution of the form: where a is the last…

A: Derivative of function gives the value of rate by which the function value is changing. Similarly,…

Q: Suppose we are interested in the relationship between an individual's brown hair and skin color.…

A: From the given information, X: degree of brown hair color Y: degree of skin color

Q: 3. The number of suits sold per day at a department store is shown in the table, with the…

A: Given data, X P(X=x) 19 0.2 20 0.2 21 0.3 22 0.2 23 0.1

Q: Suppose the probability distribution of x, the number of defective tires on a randomly selected car…

A: We have given that the probability distribution table.

Q: Find the mean, variance and standard deviation for the probability distribution given below: X…

A: Given X -5 2 12 10 P(X) 0.553 0.136 0.213 0.098

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: 1. The number of cellphones sold per day at a local cellphone shop, along with its corresponding…

A: We have given that the number of cellphones sold per day at a local cellphone shop, along with its…

Q: 3. Number of monthly absences of Juan Dela Cruz based on his previous records of absences as…

A: Let X be the random variable having probability mass function is,  Number of absence (X)  percent…

Q: 12. The following table lists the probability distribution for cash prizes in a lottery conducted at…

A: Given Information: The table lists the probability distribution for cash prizes in a lottery…

Q: therefore, it means that the average number The mean is equal to of cellular phones of sold per day…

A: Probability is a common term everyone use in their day-to-day life. For example, probably an 80%…

Q: Suppose the earnings of a laborer, denoted by X, are given by the following probability…

A:

Q: 4.The following table contains the probability distribution of the number of traffic accidents daily…

A: The data are given,

Q: 1. Complete the table below by finding the variance and standard deviation of the following…

A: