Suppose that T is a random variable with the following probability distribution:T:34p(t):0.080.320.150.200.25What is the probability that T is less than, or equal to - 4?a.b. What is the probability that T is greater than or equal to 3?c. What is the expected value of T?d. What is the standard deviation of T?

Answered: Image /qna-images/answer/463446fd-034c-490b-92f0-9ecb710b142b.jpg

Answered: Suppose that T is a random variable…

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 x be a random variable with the following probability distribution 2 5 P(x) 0.3 0.2 0.3 k 0.1 Find the expected value and the standard deviation for x. Select one: O a. 2.7 and 2.1 O b. 2.5 and 3.2 O c. 2.7 and 3.2 O d. 2.8 and 2.1
In a pizza takeout restaurant, the following probability distribution was obtained. The random variable x represents the number of toppings for a large pizza. Find the mean and standard deviation. x P(x) 0 0.30 10.40 2 0.20 30.06 4 0.04 O mean: 1.30; standard deviation: 1.54 O mean: 1.14; standard deviation: 1.04 O mean: 1.54; standard deviation: 1.30 O mean: 1.30; standard deviation: 2.38
Let X be a random variable with the following probability distribution: - 4 3 5 f(x) 0.6 0.3 0.1 Find the standard deviation of X. The standard deviation is . (Round to two decimal places as needed.)
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When conducting research on allergic reactions to a new drug, a researcher forms random groups with five males in each group. The random variable x is the number of males in the group who develop an allergic reaction. x P(x) 0 0.665 1 0.278 2 0.052 3 0.004 4 0.001 5 0.000 a. Find its mean and standard deviation. (Round to one decimal place as needed) b. What is the probability of at least 3 males developing an allergic reaction? (Round to three decimal places as needed)
Solve for (E)

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