Below is the relative-frequency table of the probability distribution for the discrete random variable X, with X = "the number of cars owned by families in New York." x P(X = x) 0 0.03 1 0.31 2 0.43 3 0.14 4 0.09 If the expected value is 1.95, what is the standard deviation? Group of answer choices 0.93 0.96 0.99 0.91

Q: Calculate the standard deviation for the following probability distribution: X 1 2 3 4 P(x) 0.15…

A: The probability distribution of random variable x is given.

Q: in a certain region, the mean annual salary for electricians is $58,650. Let x be a random variable…

A: GivenMean(μ)=58650standard deviation(s)=1890sample size(n)=40

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

A: Given Information :  Your company, Sonic Video, Inc., has conducted research that shows the…

Q: The owner of a local movie theater keeps track of the number of tickets sold in each purchase and…

A:

Q: The average student loan debt for college graduates is $25,700. Suppose that that distribution is…

A: Given that The average college student loan debt for college graduates (μ) = $25,700 The…

Q: A random variable X follows normal distribution with the mean 100 and standard deviation 4. Find the…

A:

Q: You are playing a card came, and the probability that you will win a game is p = 0.57. If you play…

A: given data  n = 387 p = 0.57 binomial distribution x  = number of wins

Q: x P(x = x) 0 0.03 10.31 2 0.43 3 0.14 4 0.09 If the expected value is 1.95, what is the standard…

A: It is an important part of statistics. It is widely used.

Q: b. Compute the standard deviation. (Type an integer or decimal rounded to three decimal places as…

A:

Q: The average student loan debt for college graduates is $25,600. Suppose that that distribution is…

A: given: mean = 25600 standard deviation = 13450

Q: The population mean annual salary for an electrician is $46,700.A random sample of 42 electricians…

A:

Q: Select the most appropriate graph. If X is a normal random variable with a mean of 20 and standard…

A: Mean=20 Standard deviation=2

Q: Choose the correct histogram below. OA. P(x) 0.5 0.4- 0.3 0.24 0.1- 0- C. P(x) 0.5- 0.4- 0.3- 0.24…

A: It is given that the Binomial distribution is P(X) = 6Cx*(0.2)x(0.8)6-x

Q: Let be the number of TV owned by a randomly selected household with annual income between $55,000…

A: XP(x)x*P(x)X2*P(x)00.0010.0000.00010.2200.2200.22020.3390.6781.35630.2790.8372.51140.150.6002.40050.…

Q: etx be a random variable representing dividend yield of bank stocks. We may assume that x has a…

A: The following information has been provided: μ=5.0                n=10x¯=5.38              σ=1.9

Q: The mean height of an adult giraffe is 18 feet. Suppose that the distribution is normally…

A: The curve of the normal distribution is bell shaped and symmetric about the mean of the…

Q: You are playing a card came, and the probability that you will win a game is p = 0.19. %3D If you…

A:

Q: Suppose that a random variable z has a standard normal distribution. Use a standard normal table…

A:

Q: The table below gives the probability distribution for a discrete random variable X. X 0 1 2 3 4 5 p…

A: X012345p0.290.16?0.200.140.05

Q: A random variable x has a standard normal probability distribution.  Which of the following…

A:

Q: a. Calculate the probability that the average number of minutes that diners spend at their table for…

A: Let X denote number of minutes that drivers spend at their table for dinner. Given that X follows…

Q: You are playing a card game, and the probability that you will win a game is p=0.13 If you play the…

A: Binomial distribution is a discrete distribution that deals with the probabilities of success and…

Q: The monthly return of a particular stock follows the normal distribution with mean 0.01 and standard…

A: Given: Monthly return = X X follows Normal distribution with mean 0.01 and standard deviation 0.14

Q: You are playing a card came, and the probability that you will win a game is p = 0.75. If you play…

A: p=0.75sample size(n)=203

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.