Given the following probability distribution:      X      P(X)      10    0.3      20    0.1      30    0.5      40    0.1 what is the standard deviation?

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: 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: The following table lists the probability distribution of car sales per day in a used car dealer…

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Q: A survey showed the following probabilities of having X number of cats per household   X = number of…

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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: Find the standard deviation for the given probability distribution. P(X) x.P(X) x².P(X) 0.21 0.08…

A: Given that  x p(X) 0 0.21 1 0.08 2 0.08 3 0.36 4 0.27

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

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Q: A discrete random variable has the following distribution. Find the mean and standard deviation. X…

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Q: Let x be the number of errors that appear on a randomly selected page of a book. The following table…

A: Obtain the value of the mean of X. The value of the mean of X is obtained below as follows: The…

Q: I. Find the variance and standard deviation of each probability distribution below. 1. 2 3 P(X) 0.1…

A: As per Bartleby guideline expert have to answer first question only dear student please upload other…

Q: The following table lists the probability distribution of a discrete random variable, x: 1 2 3 4 5 6…

A: Solution-: We have given following table: x P(x) 0 0.04 1 0.11 2 0.18 3 0.25 4 0.12…

Q: Distribution A Distribution B Given the probability distributions shown to the right, complete the…

A: Given that  Probability distribution table  A )  X 0 1 2 3 4 P(x)  0.46 0.25 0.14 0.12 0.03…

Q: 2. Use the binomial theorem to show that an := (1+)" is a strictly monotone increasing sequence,…

A: 2. we have, by binomial theorem, for positive integral index n, an = (1+1/n)n = 1+ n.1/n + n(n-1)/2!…

Q: Find the probability that at least 1 student misses the weekly quiz. b. Find the mean value of x.…

A: x p(X) x*p(X)   x 2*p(x) 0 0.5 0 0 1 0.3 0.3 0.3 5 0.1 0.5 2.5 10 0.1 1.0 10     1.8 12.8

Q: Find the mean and standard deviation of this probability distribution 0 1 2 3 4 5 0.1681…

A: Given Information: 0 1 2 3 4 5 0.1681 0.3601 0.3087 0.1323 0.0284 0.0024…

Q: Determine whether the following is a probability distribution. If not, identify the requirement that…

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Q: DETERMINE THE MEAN, VARIANCE, AND STANDARD DEVIATION OF THE FOLLOWING PROBABILITY DISTRIBUTION AND…

A: a. The formula for mean is defined as µ = Σ[xP(x)].

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: 11) Given the Probability Distribution below, find the standard deviation. Round the answe to two…

A: The pmf is given as- x PX=x 0 0.09 1 0.41 2 0.26 3 0.24

Q: random variable X is given in the following table. Find the standard deviation of the random…

A: PMF of Xx-2-1012P(X =x)0.160.170.300.150.22

Q: When parking a car in a downtown parking lot, drivers pay according to the number of hours or…

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Q: What is the standard deviation of the following probability distribution? Round to tenths place.

A: Expectation: Second raw moment:

Q: A random variable X has the probability distribution given in the following table: 1 2 3 4 5 (x =…

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Q: X is a normally distributed random variable with a mean of 10.0. Find the standard deviation of the…

A: Solution: From the given information, X follows normal distribution with a mean µ=10. Then,

Q: Please calculate the variances, Var(X) and Var(Y), and the corresponding standard deviations for the…

A: …

Q: Given the probability distribution below, calculate the following. Round all answers to two decimal…

A: For the given probability distribution table Find Mean =? Variance =? Standard deviation =?

Q: On the midnight shift, the number of patients with head trauma in an emergency room has the…

A: Step 1: Find the mean of the probability distribution mean = ∑x * P (x)where:x = valuesP(x) =…

Q: A discrete random variable X has the following probability distribution: -4 -3 -2 -1 2 3 0.05 0.075…

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Q: A fair coin is flipped 4 times.  The probability for the number of heads (x) is given in the table…

A: List of formulae :  Mean :  μ= ∑xP(x) Standard deviation :  σ = ∑(x-μ)2P(x)

Q: Calculate the mean, the variance, and the standard deviation of the following discrete probability…

A: Given the discrete probability distribution as follows: x 5 10 15 20 P(x) 0.35…

Q: A random variable X has the probability distribution given in the following table: 2 3 4 5 6 P(X =…

A: When random variable X has the probability distribution then sum of the probabilities must be equal…

Q: What is the standard deviation of a variable with the probability distribution X 16 32 p(x) 0.1 0.9…

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Q: Given the following probability distribution, calculate the variance x P(x) 1 0.123 2 0.238 3 0.542…

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Q: The random variable x represents the number of credit cards that adults have along with the…

A: Given data is x P(x) 0 0.07 1 0.68 2 0.21 3 0.03 4 0.01

Q: PART VI. Consider the following discrete probability distribution. X P(x) 0 0.18 1 0.44 2 0.27 3…

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Q: Find the variance and standard deviation of each probability distribution. a. 2 3 P(x) 0.10 0.45…

A: V(X)=E(X2)-[E(X)]2 Sd(x)=√V(X)

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: c)      Determine the standard deviation σ of x

A: x p(X) xp(x) (x-xbar)^2 p(x)*(x-xbar)^2 0 0.8 0 0.0625 0.05 1 0.15 0.15 0.5625 0.084375 2 0.05…