There are six telephone lines in a company. Let X denote the number of lines in use at aspecified time. The probability mass function of X is as given as follow:01234.10.15Xp(x)a. 0.21Ob. None of the answers.20What is the probability of less than three lines are in use?c. 0.47d. 0.45.25.205.066.04

Answered: Image /qna-images/answer/8ca6f541-861a-46bb-bf5e-d2899b34f7e5.jpg

Answered: There are six telephone lines in a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Let the Probability Mass Function as follows: f(-1)=0.2, f(2)=0.3, f(3)=0.35 and f(0)=??, Then F(2)- a 0.35 O b.0.65 c0.15 d. 0.3 ge
Let X = daily number of bag of rice a farmer harvest. The farmer modeled X and got the following probability mass function. X 0 1 2 3 4 P(X=x) 0.1 0.4 0.25 0.15 0.10 a. The probability that the farmer will harvest 5 bags of rice today is? b. The probability that the farmer will harvest at least 2 bags of rice today? c. The amount of bags of rice the farmer harvest for a day on the average is? d. If the farmer gets $300 per bag, what is the farmer's average daily earnings? e. What is the variance of X?
I need part d) ONLY
Match the following questions with the correct answers. A. 24 B. 0.0929 C. 2 D. 154 E. 3/4 F. 120 select select select select select select 1. If X220, the probability that a man aged x marries at time t from the present is 15dt/(t+x)2. Find the probability that a person aged 20 eventually marries. 2. If X is the number of 6's which appear when 72 dice are thrown, what is the expected value of X²? 3. Suppose only 12% of men in ancient Greece were honest. What is the probability that the first honest man Diogenes Jencounters will be the third man he meets? 4. Find the expected value of the number of times one must throw a die until the outcome 1 has occurred 4 times? 5. Find the variance value of the number of times one must throw a die until the outcome 1 has occurred 4 times? 6. If for a Poisson distribution 2f(0)+f(2)=2f(1), what is the variance of the distribution?
If the average number of rodents in a cotton farm whose swabs are 20 dunums is 2 per dunum, calculate The probability that a given dunam contains more than 3 rodents. b, find the value of the constant C that makes the following function a probability mass function F(x) C 0.15 0.45
The table below shows the probability mass function of the amount of memory X (GB) in different flash drives available in a certain store. 1 .25 y p(y) What is the V(Y) a. 0.25 Ob. C. 0 d. 0.74 .60 0.85 None of the answers 2 .10 3 .05
Determine the value of c such that the function is a probability mass function. g= {(11,0.12), (13,0.4c), (15,0.4c), (17,0.22)} ... C = (Simplify your answer.)
Determine if the random variables X and Y are statistically INDEPENDENT or not; show solution.
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The table lists the drinking Sex Non-drinker Man Woman Total O A. 1.000 OB. 0.924 OC. 0.237 O D. 0.763 135 187 322 habits of a group of college students. If a student is chosen at random, find the probability of getting someone who is a non-drinker. Round your answer to three decimal placem Regular Drinker Heavy Drinker Total Total D 203 219 422 63 21 84 5 11 16 ***
Assume that the coin is flipped 4 times, and the random variable X is defined to be 2 times the number of heads minus 4 times the number of tails. How many different values are posslbe for the random variable X? Answer: 5 Fill in the table below to complete the probability density function. Be certain to list the values of X in ascending order Values of X (these are all correct. I need help with finding the probabilities) -16, -10, -4, 2, 8 What are the probabilities? Thanks!

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