Let N be the last digit of your student number. Let X and Y be two continuous random variables that havethe correlation coefficient c=0.1(N+1). Which of the following statements are true? (Wrongly tickedanswers will reduce your marks in this question)a. X and Y are positively correlated.b.O c.X and Y are statistically independent.The sum of E[X] and E[Y] is equal to E[X+Y].Od. X and Y are negatively correlated.e.The sum of Var(X) and Var(Y) is equal to Var (X+Y).

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Answered: Let N be the last digit of your student…

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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a b c total male 4 10 2 16 female 5 18 3 26 total 9 28 5 42 If one student is chosen at random,Find the probability that the student got an A: Find the probability that the student was male AND got a "A": Find the probability that the student was male OR got an "A": If one student is chosen at random, find the probability that the student got a 'B' GIVEN they are female
Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna).t Suppose that in a remote part of the Grand Canyon, a random sample of six of these birds was caught, weighed, and released. The weights (in grams) were as follows. 3.7 2.9 3.8 4.2 4.8 3.1 The sample mean is x = 3.75 grams. Let x be a random variable representing weights of hummingbirds in this part of the Grand Canyon. We assume that x has a normal distribution and o = 0.96 gram. Suppose it is known that for the population of all Anna's hummingbirds, the mean weight is µ = 4.80 grams. Do the data indicate that the mean weight of these birds in this part of the Grand Canyon is less than 4.80 grams? Use a = 0.10. (a) What is the level of significance? State the null and alternate hypotheses. Will you use a left-tailed, right- tailed, or two-tailed test? O Ho: H 4.8 g; right-tailed O Ho: H = 4.8 g; H1: µ < 4.8 g; left-tailed (b) What sampling distribution will you use? Explain the rationale for your choice of…
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Let N be the last digit of your student number. Let X and Y be two continuous random variables that have the correlation coefficient c=0.1(N+1). Which of the following statements are true? (Wrongly ticked answers will reduce your marks in this question)