Find the mean and variance of the following probability distributions.

Q: Calculate the variance of the following probability distribution: 1 2 f(x) 0.14 0.18 0.25 0.21 0.22…

A: Given, a probability distribution Then ,    mean = Ex = ∑x=04x fx   Variance= Ex2 - Ex2where    Ex2…

Q: 3 4 2. 2 3 10 10 P(X) 10 10 10 2.

A:

Q: Find the mean, variance and standard deviation of each of the probability distribution.

A: The following table shows the provided outputs of the discrete random variables, along with the…

Q: Complete the following probability distribution table: Probability Distribution Table P(X) -17 12…

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

Q: Determine whether the following is a probability distribution or not.  x P(x) 1 0.037 2 0.200 3…

A: Given data: x P(x) 1 0.037 2 0.200 3 0.444 4 0.296

Q: Complete the following probability distribution table: P(X) -25 0.2 -15 0.15 13 0.15 18 37 0.12 90…

A:

Q: Is the following a Probability Distribution Function?

A: Given : x p(x) 0 0.01 1 0.97 2 0.02 3 0.1

Q: Complete the following probability distribution table: Probability Distribution Table P(X) - 13 14…

A: Solution: The given probability distribution of X is

Q: Find the mean or expected value of each probability distribution below. 3 4 P(x) 0.17 0.33 0.36 0.14

A: We have given that  Probability distribution of discrete random variable.  Mean = E(x)= ∑x*P(x)…

Q: (d) Draw a graph of the probability distribution and comment on its shape

A: here given  n =  6 p = 0.75

Q: Given the following discrete probability distribution, P(x) 50 0.375 65 0.05 70 0.225 75 0.15 90…

A: The probability distribution is given.  A. The Expected value is given by, E(X) = ΣxP(x) =…

Q: Complete the following probability distribution table: Probability Distribution Table X P(X) - 20…

A: The following information has been given: X P(X) -20 0.5 -1   19 0.1 69 0.3 We need to…

Q: Below is a probability distribution for the number of math failures of BC students. 1 2 3 4. P(X)…

A:

Q: Complete the following probability distribution table: Probability Distribution Table P(X) -22 0.1 -…

A: Given data,

Q: Determine whether the following can serve as the probability distribution of a random variable X. 1.…

A: Probability of any value of random variable is always lies in between [0,1] and the sum of…

Q: Complete the following probability distribution table: Probability Distribution Table X P(X) - 29…

A: From the provided information, x P (X = x) -29 0.4 16 0.1 20   28 0.2…

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: Find the expected value of the following probability distribution. Round to the nearest tenth.

A: From the given: X P(X) X·P(X) 1 1/2 1/2 2 1/3 2/3 3 1-1/2-1/3=1/6 1/2

Q: b) Create a probability distribution for the random variable C

A: From the give information, Consider, probability distribution table: C=c P (C=c) 2…

Q: The number of courses (X) that Sacramento City College sociology students are enrolle in this…

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: FILE Compute the mean and variance of the following probability distribution. P(x) 5 .1 10 .3 15 .2…

A: The objective is to compute the mean and variance of the given probability distribution.

Q: Given the following probability distribution, Find P(x=2) X 1 2 3 P(x=x) 0.2 0.05 P(x=2)= 4 0.2 5…

A:

Q: 1 3 4 P(x) 0.02 0.07 0.22 0.27 0.42

A: In these questions, we have given that the  a random variable X and corresponding probability of X…

Q: The number of mobile phones sold per day at a retail store varies as shown in the given probability…

A: E(X)=∑X.P(X)

Q: A. Find the mean, variance, and standard deviation of the following probability distribution by…

A:

Q: Find the expectation, variance, and standard deviation of the following probability distribution: x…

A: Expectation=E(X)=∑i(xipi)=-1(0.3)+0(0.1)+1(0.1)+2(0.3)+3(0.2)=1

Q: The table below is an example of probability distribution of a discreet random variable. * 1 3 5…

A:

Q: Determine whether this table represents a probability distribution. P(x) X 0.25 1 0.2 2 0.15 0.45 O…

A: We have given that,  Let X be the random variable having distribution is,  X P(X)  0 0.25 1…

Q: Complete the following probability distribution table: Probability Distribution Table P(X) - 25 0.5…

A: We have to complete given table.

Q: 2) Consider each distribution. Determine if it is a valid probability distribution or not and…

A:

Q: Given the following probability distribution, Find P(x-2) 3 4 P(x=x) 0.2 0.05 0.2 0.25 P(x-2)%=D

A: In general, the total probability is always 1.

Q: Can the following table be a probability distribution? P(x) 0.1758 2 0.0463 0.3103 4. 0.2778 0.0826…

A: We have given that  X 1 2 3 4 5 P(x) 0.1758 0.0463 0.3103 0.2778 0.0826

Q: Complete the following probability distribution table: Probability Distribution Table X P(X) - 24…

A: Given data is  x P(x) -24 0.3 21 0.1 40 0.3 52 ?

Q: Calculate the mean and standard deviation for the discrete probability distribution shown here. 2 5…

A:

Q: For each of the following probability distributions, calculate the expected value and standard…

A: Solution foe each is as follows,

Q: Let X = {Email, In Person, Instant Message, Text Message}; P(Email) = 0.06 P(In Person) = 0.55…

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

Q: Find the missing value of the probability distribution. 1 4 5 P(x) 0.05 0.25 0.32 0.15 0.10

A:

Q: which of the following probability distributions is a random variable?

A: Given that  Some probability distributions for a random variable   We know that  ∑P(X) =1 We check…

Q: Complete the following probability distribution table: Probability Distribution Table P(X) -6 7 0.2…

A: Consider a random variable x with probability distribution of p(x). Now, p(x) is said to be a valid…

Q: Consider the following probability distribution: X P(X) 1 0.1 2 ? 3 0.2 4 0.3   What…

A: Assume the probability value for X=2 is 0.4, because the total probability is 1. That is,…

Q: 3. Construct a probability distribution for the data and draw a histogram for the following:

A:

Q: Complete the following probability distribution table: Probability Distribution Table P(X) -20 0.3 -…

A:

Q: Find the mean of the random variable X with the given probability distribution. * 1 2 P(x) 0.34 0.25…

A: Given that  Probability mass  function of X  x 0 1 2 3 P(x) 0.34 0.25 a 0.20

Q: Given the probability distribution table, what is the expected value and variance of the discrete…

A: The expected value is defined as E(X) = ∑x.P(X) And variance is calculated as Var(X) = E(X2) -…

Q: FILE Compute the mean and variance of the following probability distribution. P(x) .1 10 .3 15 .2 20…

A:

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

A:

Q: what probability value would be needed to complete the following probability distribution? X -2…

A: Givenx = -2 , -1 , 0 , 1 ,2P(x) = 0.13 , 0.14 , 0.16 , 0.29we know that total probability  is equal…

Q: Determine whether the following describes a probability distribution and show your proof.

A: Probability distribution explains the distribution of data over the random variable. It can used to…