The table below represents the probability density function for the random variable X. Find the standard deviation of X. P(X = x) 1/6 1/3 9. 1/2 Select the correct answer below: O 2.24 О 4.5 6.38 O 1.38

Q: Fiha normal probability distribution for P(z|>2.5). Single line text.

A: Normal distribution also known as the gaussian distribution , is a probability distribution that is…

Q: According to a study, the length of pregnancy is normally distributed with a mean of 269 days and a…

A: GivenMean(μ)=269standard deviation(σ)=14.7

Q: C. Compute the mean and variance for the linear function W = X + Y.

A: X and Y have a joint pmf

Q: Let X be a continuous random variable with mean μ and standard deviation σ. If X is transformed to Y…

A:

Q: A discrete random variable X has the following probability mass function: e-44² Pr [X = x] = x! x =…

A: Given Solution:

Q: Given that z is a standard normal random variable, compute P(z < 1.1). Select one: O a. 0.9192 O b.…

A: The value can find from standard normal table

Q: 7% of US adults have blood type O-negative. Suppose we take a random sample of 50 US a X represent…

A: Note: Please repost 2nd question as i can author only 1 question as per my policy. Given…

Q: Find Me A. Use the Table of Standard Normal distribution to determine corresponding probabilities of…

A: Find  P(Z&lt;-1.45)=? P(0.5&lt; z&lt;2.33)=? P(Z&gt;1.78)=? Note: This probability value calculated…

Q: 3.49 Let X denote the number of times a certain nu- merical control machine will malfunction: 1, 2,…

A: Given, f(x,y) x 1 2 3 y 1 0.05 0.05 0.1 3 0.05 0.1 0.35 5 0 0.2 0.1

Q: Let X be a positive discrete random variable. It is known that E[X2] = 7.8 and SD(X) = 2.3 (i.e.…

A: Given,E(X2)=7.8S.D(X)=2.3

Q: A random variable x can have five values: 0, 1, 2, 3, 4, 5. The probability distribution is:   x 0…

A:

Q: Let X be a random variable having an exponential distribution with parameter equal to 3.3. Find the…

A: given data  exponential distribution λ = 3.3 P(x does not fall in interval 0.3 to 0.4) = ?

Q: able Z follows a standard distribution, find p(-1.2<Z<1.2)

A: USe standard nomla table to find the rporbabiloities corresponding to the given z values.

Q: (G) Determine the proportion of the distribution that iscontained within the interval (u - 30, µ +…

A: (G) Empirical rule (68 – 95 – 99.7 rule): For a bell shaped distribution (normal) the empirical rule…

Q: Given that z is a standard normal random variable, compute P(z > -2.14). Select one: O a. 0.0166 O…

A:

Q: (a) the probability density function f(x) = (b) the mean μ = (c) the standard deviation = II III III…

A: Given, x is a random variable best described by a uniform probability that ranges from 2 to 4.That…

Q: Let X be a continuous random variable with uniform distribution, and with A = 0.09, B = 0.34. What…

A: Uniform distribution is an example of continuous distribution. In this distribution, each random…

Q: For the random variable Z follows a standard distribution, find P(-1.2<Z <2.1)

A: Given data: For the random variable Z follows a standard distribution, To find ; P(-1.2&lt;Z&lt;2.1)

Q: Consider the pmf for a discrete random variable X below. What is E(X)=p? 3 0.1 P(x) 0.2 0.2 0.5…

A:

Q: Assume that the random variable X is normally distributed, with mean μ = 90 and standard deviation…

A: It is given that  Mean, μ = 90 Standard deviation, σ = 15 Z-Score, Z = ( X - μ )/σ

Q: Q1. For the following probability mass function, compute the Table 1: Probability mass function 150…

A: The provided information is as follows:The probability mass function is given as…

Q: Let Z be the standard normal random variable. Let X1 = Z, X2 = -Z be independent random variables.…

A: We have given that,  Z from the standard normal distribution with mean = 0 and variance = 1 i.e,…

Q: f X is a random variable such that: E(X) = 6.2 and E(X2) = 62.5, then what is the standard deviation…

A: Given: X is a random variable. E(X)=6.2 E(X2)=62.5

Q: 5. Given (kx? if z = 1, 2, 3, 4 P(x) = else sa probability function for a discrete random variable;…

A:

Q: Find the standard deviation of each random variable shown. The mean for part a is 2.3​, and the mean…

A:

Q: Assume that the random variable X is normally distributed, with mean μ = 110 and standard deviation…

A: From the provided information, Mean (µ) = 110 Standard deviation (σ) = 5 X~N (110, 5)

Q: Assume X has the following probability distribution: X 1 2 3 4 P(X) .1 .5 .2 .2 Compute the…

A: Given that probability distribution table.  X 1 2 3 4 P(X) .1 .5 .2 .2

Q: A discrete random variable x has possible values x, = i?, i = 1, 2, 3, 4, 5 which occur with…

A: GivenA discrete random variable x has possible valuesxi=i2i=1,2,3,4,5with probabilities…

Q: Let X~ binomial (n, p) and Y ~ binomial (m, p) be independent. 1. Derive the MGF of W = X +Y.

A: 3. Given that X~binomial (n, p) and Y~binomial (m, p) The MGF of X is, The MGF of Y is, a)…

Q: A probability distribution function is modeled by the following X-Y cartesian graph: 15 kT 长 6 7 12…

A: Solution Given

Q: Suppose a discrete random v mass function (where c> 0 is a constant): 1 5c p(w) 2c

A: According to the sum, a) We know, ∑w=04p(w)=1 So, 2c+5c/4+c/2+c/4=1 Or,4c=1 Or, c=1/4 The value os…

Q: Given that z is a standard normal random variable, compute P(z < –2.14). Select one: O a. 0.0154 b.…

A: We have to find correct option for given data..

Q: Let T be a random variable. If E(T) = a+b0, find an unbiased estimator of 0. Is the mean- squared…

A:

Q: The following table shows the jointly distribution of two discrete random variables. 1 2 0.357 Y 1…

A: We have to find the E(XY) for the given joint pmf.

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.