4.111 Work with a transformation. Here is aprobability distribution for a random variable X:lls balls.Value of XTProbability30.47T0.62011(a) Find the mean and the standard deviation of thisdistribution.80 21000ried to thod isdı 29ilqıni zniT(b) Let Y = 4X - 2. Use the rules for means andvariances to find the mean and the standard deviation ofthe distribution of Y.(c) For part (b), give the rules that you used to find youranswer.

Answered: Image /qna-images/answer/e75e3cae-acce-45f5-b45e-453441fe39f1.jpg

Answered: 4.111 Work with a transformation.…

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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K 1 Use the fact that the mean of a geometric distribution is μ =- and the variance is o р = (a) The mean is (Type an integer or a decimal.) 9 2 Р 1 1000 A daily number lottery chooses three balls numbered 0 to 9. The probability of winning the lottery is winning the first time. (a) Find the mean, variance, and standard deviation. (b) How many times would you expect to have to play the lottery before winning? It costs $1 to play and winners are paid $900. Would you expect to make or lose money playing this lottery? Explain. Let x be the number of times you play the lottery before 57
Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs Probability 1 3 4 0.649 0.222 0.088 0.022 0.014 0.006 (a) Find the mean, variance, and standard deviation of the probability distribution. Find the mean of the probability distribution. u= (Round to one decimal place as needed.) Find the variance of the probability distribution. o = ' (Round to one decimal place as needed ) Find the standard deviation of the probability distribution. (Round to one decimal place as needed.) (b) Interpret the results in the context of the real-life situation O A. A household on average has 0.5 dog with a standard deviation of 11 dogs. O B. A household on average has 0.6 dog with a standard deviation of 0.9 dog. C. A household on average has 0.8 dog with a standard deviation of 0.9 dog. O D. A household on average has 0.9 dog with a standard deviation of 0.5 dog.
The frequency distribution shown here illustrates the number of medical tests conducted on 37 randomly selected emergency patients. Number of tests performed Number of patients 12 1 2 2 3 5 4 or more 9 Send data to Excel If a patient is selected at random, find the probability for the following. Enter your answers as fractions or as decimals rounded to 3 decimal places. Part: 0/ 3 Part 1 of 3 P(patient has had exactly 2 tests done)
The random variable X has the probability distribution given in the following table. 1 2 3 4 5 P(X = x) 0.03 0.27 where a, b and e are constants. It is given that E(X) = 3.5 and Var(X) = 1.17. Find the values of a, b and c.
7th
Solve for D
5
11 LL Complete parts (a) and (b) below. The number of dogs per household in a small town 11 Probability 0. 0.632 1. 0.228 3. 0.027 4. 0.014 0.092 11 (a) Find the mean, variance, and standard deviation of the probability distribution. Find the mean of the probability distribution. 11 p=(Round to one decimal place as needed.) 11 Find the variance of the probability distribution. 11 o = (Round to one decimal place as needed.) Find the standard deviation of the probability distribution. 58°F Su 查 0 同回 F10 F8 F11 7. 8. 6.
Points: 5 10) Find the mean and standard deviation for the probability distribution. Round answers to the nearest tenth. Show your work below. P(x) .000 1 2 3 14 .002 .001 0.05 0.257 0.69 Мean Standard Deviation

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