*Random back-off algorithm(ethernet)
if N frames collide with each other,
What is the probability that the 'random number selection section' is greater than 4 when the collision is successfully resolved?
*Random back-off algorithm(ethernet) if N frames collide with each other, What is the probability that the...
Carts A and B move directly toward each other and collide perfectly elastically. They move off from the collision directly away from each other. The mass of B is N times the mass of A. Before the collision, A is moving toward B at a speed of vo; after the collision, B is at rest, and A moves off at a speed of -Vf. Calculate the speed of cart B before the collision. NOTES: Enter an algebraic expression. Be sure...
In outer space, far from any other influences, two rocks collide and bounce off each other. All motion is along the x axis. Rock A has a mass of 3 kg, an initial velocity of 〈40,0,0〉m/s, and a final velocity of 〈16,0,0〉m/s. Rock B has a mass of 6kg and an initial velocity of 〈−20, 0, 0〉 m/s. (a) What is the final 3-D velocity vector (not speed!) of Rock B? (b) What is the change in the total kinetic...
4. You toss n coins, each showing heads with probability p, independently of the other tosses. Each coin that shows tails is tossed again. Let X be the total number of tails (a) What type of distribution does X have? Specify its parameter(s). (b) What is the probability mass function of the total number of tails X?
Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there are n=9 trials, each with probability of success correct) given by p=0.2. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer than 4 (Round to four decimal places as needed.)P(X<4) = _______
ian Automotive, 35% of all car-owning households have three or more 5 car ording to the Experi (a) I n a random sample of 20 car-owning households, wh have three or more cars? at is the probability that exactly In a random sample of 20 car-owning households, what is the probability that less or equal to 4 households have three or more cars? (b) (e) In a random sample of 20 car-owning households, what is the probability that greater than...
Independent random samples of n = 100 observations each are drawn from normal populations. The parameters of these populations are: • Population 1: μ1 = 300 and σ1 = 60; • Population 2: μ2 = 290 and σ2 = 80. (1) What is the probability that the mean of Population 1 is between 294 and 306? (2) How many samples should be included if we want the probability in Part (1) to be at least 95%? (3) What is the...
Assume that random guesses are made for six multiple choice questions on an SAT test, so that there are n=6 trials, each with probability of success (correct) given by p=0.4. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer than 4. P(X<4)= ________ (round to four decimal places)
6 THE NORMAL PROBABILITY DISTRIBUTION (26) A large number of random variables observed in nature possess a frequency distribution that is approximately mound-shaped and can be modelled by a normal probability distri- bution (1) True (2) False (27) Suppose is a normal random variable with mean and standard deviation a. If is the standardized normal random variable of I, which of the following statements is false? (1) When the value of 2 = 0. (2) When I is less than...
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In the following probability distribution, the random variable x represents the number of activities a parent of a 6th-to 8th grade student is involved in. Complete parts (a) through (1) below. * 1 0 1 2 3 4 5 P(x) 0.269 0 206 0.224 0.239 0.062 (a) Verify that this is a discrete probability distribution This is a discrete probability distribution because the sum of the probabilities is and each probability is (6) Graph the discrete...
b) A loaded dice never lands showing the number 2, lands showing 6 with probability 1/3, and all other numbers with probability 1/6. i) Calculate the probability that 3 such loaded dice land showing the same number 4 marks] Calculate the probability that when one such loaded dice is thrown together 3 marks] ii) with a fair dice they land showing the same number. c) The mean free path of a hydrogen molecule in air is 110 nm at standard...