The continuous random variable X has the following probability density function (pdf), for some positive constant c, f(x) = for 0 ≤ x ≤ c. (a). Prove that c= √3-1. 3 (1+x)³ (a) Accept c = √3-1. Plot f(x) in the range. (b) Find E(X); Var (X) using numerical integration (c) Use Inversion method, find 20 random numbers from X
Q: The average retirement age in America is 66 years old. Do small business owners retire at an older…
A: The average retirement age in America is 66 years old.
Q: 4. An engineering construction firm is currently working on power plants at three different. sites.…
A:
Q: Compute the indicated quantity. P(An B) = P(A) = 0.3, P(B) = 0.4. A and B are independent. Find…
A: Answer Given P [A] =0.3 P [B] =0.4 A and B are independent.
Q: In a Binomial experiment, the probability of success in any trial of the experiment is 0.7. You will…
A: From the provided information, The probability of success in any trial of the experiment is 0.7 that…
Q: transcript Suppose that the time, in hours, required to repair a heat pump is a random variabile X…
A: X ( time required to repair the heat pump ) Follows a Gamma distribution , Given : α = 2 β = 1/3…
Q: Two events A and B are having the following probabilities, P(A) = 0.41, P(B) = 0.44 Calculate…
A: Answer: From the given data, P(A) = 0.41 P(B) = 0.44 and P(A and B) = 0.27
Q: a) P(X= 4) when A = 2 P(X= 4) = b) P(X ≤ 5) when A = 5 P(X ≤ 5) = | c) P(X> 4) when X = 3 P(X > 4) =
A: Ramdom variable x~pois(ƛ) Then pmf of x can be written as P(x)= e-ƛ×ƛx/x! : x=0,1,2,3.. a):…
Q: The phooysoical fitness of an athlete is often measured by how much oxygen the athlete takes in…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: The time (in minutes) between arrivals of customers to a post office is to be modelled by the…
A: exponential distributionμ = 0.47 minute = 28.2 secondsλ = 128.2 per secondformula to use : P(x>X)…
Q: In a survey of 100 randomly selected dentists, 28 dentists recommended Pearly brand over the other 5…
A: The random variable X is the dentists recommended Pearly brand toothpaste The total sample size is…
Q: A display case of lottery tickets contains 5 winning tickets and 45 tickets that will n win. Seven…
A: Here, we have given that the display of lottery tickets contains 5 winning tickets and 45 tickets…
Q: The probability of tails of a weighted coin is 0.58. The number of tails is noted each of the 25…
A: Answer Given The probability of tails of a weighted coin is 0.58. The number of tails is noted…
Q: 3. A drug company claims that if you take their new wonder drug "Ainstats", that you will r your…
A: A drug company claims that if you take their new wonder drug "Ainstats", you will raise your grade…
Q: Use normal approximation to estimate the probability of getting less than 54 girls in 100 births.…
A: n=100, p=1/2
Q: In a lottery game, a single ball is drawn at random from a container that contains 25 identical…
A: There is total 25 identical balls numbered from 1 through 25.
Q: It is given that 5% of the flower pots arriving to the florist are broken. Find the probability when…
A:
Q: Let X and Y have the joint pdf: x+y, 0, fx,y(x, y) = {{ 0≤x≤ 1,0 ≤ y ≤ 1; otherwise. (a) Determine…
A: According to the Bartleby guidelines expert solve only one question and maximum three subpart of the…
Q: Problem #3: A group of 19 people is going to form 2 committees, one with 4 members and the other…
A: There are 19 people in a group. Two committees are going to be formed. one with 4 members and…
Q: The distribution of the binomial random variable (X) has the following parametes: P=0,3 and n=9.…
A: In the field of statistics, understanding the basics of probability is fundamental. Probability…
Q: Statistics Canada wants to know the unemployment rate in Vancouver during any part of last year. How…
A: confidence level=90% Margin of error(E)=0.012
Q: 6. (1) Suppose that A, B, C are independent, and P(A) = 0.1, P(B) = 0.2, P(C) = 0.3, Then the…
A: Here given that A , B and C are independent events , p(A) = 0.1 ,so p(A') = 1 -p(A) = 0.9 p(B) =…
Q: Which of the following two events is more likely? (a) With four throws of one die, throw at least…
A: Which of the following two events is more likely:-(a) With four throws of one die, throw at least…
Q: Poker Calculate the probability of being dealt the following poker hand. (Recall that a poker player…
A: It is required to find the probability of choosing a straight poker hand, that is, a hand with cards…
Q: Suppose that events M and N are two events P(M)= 0.6, and P(N) = 0.8 P(M or N)= 0.9 What is P(M and…
A: The events M and N are two events P(M)= 0.6, and P(N) = 0.8 P(M or N)= 0.9
Q: Find the PMF of X. Find the expectations E[X] and E[XY] Find the variance of X.
A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…
Q: 7. If P(A) = 1, P(B) = 1, P(AB) = , then determine P(AUB), P(ANB), P(AB), P(ABUAB).
A: P(A) = 1/4 P(B) = 1/2 P(AB) = 1/6
Q: What is the probability of picking 2 non-face cards out of a deck of playing cards if you do not…
A: Answer:- We know that, total number of cards in a deck = 52 The number of non-face cards in a deck…
Q: An experiment is given together with an event. Find the (modeled) probability of each event,…
A: The experiment is two dice rolled. The event A is the numbers add to 10. The outcomes of the…
Q: 11:22 10. If the analyst has 99% confidence level in his activity, what is the Z value? 2.326 1.960…
A: (10) The critical value of Z is obtained below as follows: Here, confidence level is 0.99.
Q: thinkco needs to hire 2 marketing research employees. how many ways are there for the company to…
A: Number of marketing research employees r = 2 Number of qualified applicants(n) = 10
Q: The Sorry State Lottery requires you to select five different numbers from 0 through 49. (Order is…
A: The information provided in the question are as follows :- There are 50 different numbers from 0 to…
Q: A man claims to have extrasensory perception (ESP). As a test, a fair coin is flipped 28 times, and…
A: A man claims to have extrasensory perception (ESP). As a test, a fair coin is flipped 28 times…
Q: The following refer to the following data set: 102 76.1 85.6 92.5 86.8 84.4 63.6 102 102 78.9 What…
A: The data is 102, 76.1, 85.6, 92.5, 86.8, 84.4, 63.6, 102, 102, and 78.9.
Q: From a group of 9 men and 14 women, a committee consisting of 3 men and 3 women is to be formed. How…
A: there are total 9 men and 14 women For making committee of 3 men and 3 women . here use Counting…
Q: (c) The vendor claims that the standard deviation in the weight of the sacks is less than 2 kg.…
A: A shipment of 1000 sacks of oranges arrives at a distribution centre in Edinburgh, one of 10 such…
Q: 3. (1) Suppose that P(A) = 0.3, P(B) = 0.4, P(AB) = 0.5. find P(B|AUB); (2) Suppose that P(A) = ½,…
A: The two questions can be solved by using the below formulas (1)…
Q: Suppose that a box contains 9 cameras and that 4 of them are defective. A sample of 2 cameras is…
A:
Q: Your company is considering offering 300 employees the opportunity to transfer to its new…
A: The company is considering offering 300 employees the opportunity to transfer to its new…
Q: Suppose we want to choose 6 letters, without replacement, from 8 distinct letters. (a) How many…
A: Number of choosen letters (r) = 6 Total number of letters (n) = 8 Consider a situation where r…
Q: (c) When is this distribution used in the real world?
A: The Weibull distribution is commonly used in the real world to model failure times of components,…
Q: A standard 52-card deck contains cards of 4 suits and 13 ranks, each card being a unique pair of…
A: A standard deck of cards contains suits =4 Total number of cards in each suit =13 A hand set…
Q: 1. Suppose that 100 balls are placed into 30 boxes at random and independently. (a) What is the…
A: a) Let's consider a single box. The probability that it remains empty when a ball is placed into it…
Q: Poker Calculate the probability of being dealt the following poker hand. (Recall that a poker player…
A: There are 13 denominations in a standard deck of 52 cards the number of ways we can choose two…
Q: Question 2 Let X be an exponential random variable with probability density function px(x) = }e-f…
A: Probability density function of X is p(x)=(1/3)×e-(1/3) , x≥0
Q: Consider the following random experiment: first, X is chosen uniformly at random from the set…
A: X = {1,2,3} Probability = favorable / total Px(1)= Px(2) = Px(3) = 1/3 Y = { 0,1,2,3 } We have…
Q: Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing…
A: The bag contain three red marbles, two green ones, four white ones and two purple ones. She grabs…
Q: Suppose events E and F and mutually exclusive, with P (F) = 0.48 and P(E U F) = 0.56. Calculate the…
A: Here Given events E and F and mutually exclusive, with P (F) = 0.48 and P(E U F) = 0.56.
Q: Example A random sample of 100 students is taken from the population of all part-time students in…
A: Given that, Sample size = 100 Proportion of female = 0.6 We know that , If n is…
Q: A sample of 100 customers of Montana Gas and Electric resulted in the following frequency…
A: a. The frequency distribution of monthly charges of a sample of 100 customers is given.
Q: PHONE NUMBERS What is the probability that a 7-digit telephone number generated using the digits 2,…
A: The number of digits in the phone number, n=7 The digits are 2,3,2,5,2,7, and 3.…
Step by step
Solved in 7 steps with 6 images
- The PDF of a continuous random variable X is as follows: f(X)= c(4x2 - 2x2) 0<* x <* 2 (*less or equal to) a. For this to be a proper density function, what must be the value of c ?If the probability density of X is given by f(x) =kx3(1 + 2x)6 for x > 00 elsewhere where k is an appropriate constant, find the probabilitydensity of the random variable Y = 2X 1 + 2X . Identify thedistribution of Y, and thus determine the value of k.Suppose that the random variables X and Y have a joint density function given by: f(x,y)={cxy for 0≤x≤2 and 0≤y≤x, 0 otherwise c=1/2 P(X < 1), Determine whether X and Y are independent
- Suppose the joint probability density of X and Y is fX,Y (x, y) = 3y 2 with 0 ≤ x ≤ 1 and 0 ≤ y ≤ 1 and zero everywhere else. 1. Compute E[X|Y = y]. 2. Compute E[X3 + X|X < .5]Suppose that the random variables X, Y , and Z have the joint probability density function f(x,y,z)=cxyz for 0 < x < 1, 0 < y < 1, and 0 < z < 1. Find the E(x). Use the Scientific Method of Answering (Given, Required, Formula and Solution.)Find the moment-generating function of the continuous random variable X whose probability density is given by f(x) = 1 for 0 < x < 1 0 elsewhere and use it to find μ’1,μ’2, and σ^2.
- For an exponential random variable (X) having θ = 4 and pdf given by: f(x) = (1/θ)e^(−x/θ ) where x ≥ 0, compute the following: a) E(X). b) Var(X). c) P(X > 3).Suppose that X and Y have a joint probability density function f(x,y)= 1, if0<y<1,y<x<2y; 0, otherwise. (a) Compute P(X + Y less than or equal 1). (b) Find the marginal probability density functions for X and Y , respectively. (c) Are X and Y independent?For a certain psychiatric clinic suppose that the random variable X represents the total time (in minutes) that a typical patient spends in this clinic during a typical visit (where this total time is the sum of the waiting time and the treatment time), and that the random variable Y represents the waiting time (in minutes) that a typical patient spends in the waiting room before starting treatment with a psychiatrist. Further, suppose that X and Y can be assumed to follow the bivariate density function fXY(x,y)=λ2e−λx, 0<y<x, where λ > 0 is a known parameter value. (a) Find the marginal density fX(x) for the total amount of time spent at the clinic. (b) Find the conditional density for waiting time, given the total time. (c) Find P (Y > 20 | X = x), the probability a patient waits more than 20 minutes if their total clinic visit is x minutes. (Hint: you will need to consider two cases, if x < 20 and if x ≥ 20.)
- The life (in years) of a laptop battery has a probability density function defined by P(x)=12e−x/2P(x)=12e-x/2for x in [0,∞)[0,∞). Find the probability that a randomly selected laptop battery will last between 3 and 8 years?Suppose X is a continuous random variable with density f(x) = x/2 , 0 <= x <=2 f(x) = 0 , elsewhere Write an integral expression for the moment generating function M(t).Let X denote 0.025 × the ambient air temperature (˚C) and let Y denote the time (min) that it takes for a diesel engine to warm up. Assume that (X, Y) has joint probability density function. f(x,y) = 1.6x (1 − x)(6 + 5x − 4y), for 0 < x < 1, 0 < y < 0.5. What is the probability that the air temperature will be less than 20˚C (so X ≤ 0.5) and it will take no more than 0.2 minute for the engine to warm up?