subject
Mathematics, 18.03.2020 22:29 renee9913

Suppose that X and Y are random variables for which E(X) = 2, E(Y ) = 4, Var(X) = 25 and Var(Y ) = 4. (a) (10 pts) Assume that X and Y are independent. Find E(2X − 3Y + 10) and Var(2X − 3Y + 10). (b) (8 pts) Assume that rho(X, Y ) = −0.30. Find E(2X −3Y +10) and Var(2X −3Y + 10).

ansver
Answers: 3
Show answers

Another question on Mathematics

question
Mathematics, 21.06.2019 16:00
You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?
Answers: 3
Answer
question
Mathematics, 21.06.2019 21:00
Atriangular field has sides of lengths 21, 39, and 41 yd. find the largest angle. (round your answer to the nearest degree.)
Answers: 1
Answer
question
Mathematics, 22.06.2019 00:40
If a distance of 75 yds is measured back from the edge of the canyon and two angles are measured , find the distance across the canyon angle acb = 50° angle abc=100° a=75 yds what does c equal?
Answers: 1
Answer
question
Mathematics, 22.06.2019 01:30
Which of the following is an irrational number
Answers: 1
Answer
You know the right answer?
Suppose that X and Y are random variables for which E(X) = 2, E(Y ) = 4, Var(X) = 25 and Var(Y ) = 4...
Questions
question
Mathematics, 04.07.2021 06:10
Does anyone know the answer to this? ...
question
Mathematics, 04.07.2021 06:10
Use the P (A + B) = P (A) x P (B) rule to find the probability of system failure. Let A and B be the events that the first alarm and second alarm, res...
question
Social Studies, 04.07.2021 06:10
Which of the following rights is not protected by the First Amendment? freedom of speech the right to petition the right to a speedy tra...
question
History, 04.07.2021 06:10
Ngayon naman ay bigyan mo ang sarili ng pagkakataon na makapag-isip at makalikha ng isang sanaysay ukol sa pagpapahalaga sa sariling atin. Isulat ito...
question
English, 04.07.2021 06:10
Change the following sentences as directed in the brackets​
question
History, 04.07.2021 06:10
Discuss the working style of young italy party​...
question
Mathematics, 04.07.2021 06:10
Let F(x) = x^2 – 15 and G(x)= 4 - x Find (F/G)(–7) =...
question
English, 04.07.2021 06:30
Hi , everyone please see this picture and tell me​
question
Mathematics, 04.07.2021 06:30
What is a situation in which a polynomial model might make sense, and why?...
question
Mathematics, 04.07.2021 06:30
PLEASE HELP NEED HELP W ALGEBRA 2 QUESTION!! the graph of f(x) = 3 sqr root x+8 is shown which statement is true 1. The function is only...
question
Mathematics, 04.07.2021 06:40
Ben uses a compass and a straightedige to bisect angle PQR, as shown below. B Wie statement beste wy Ben uses the cate with to draw Som there?...
question
Social Studies, 04.07.2021 06:40
Which of the following groups are not protected by the Fourth Amendment's probable cause protections? •government officials •high school stude...
question
Mathematics, 04.07.2021 06:40
Why is the sum of two negative numbers not a positive number please dont make the whole answer a example:)...
question
History, 04.07.2021 06:40
What is the correct answer ​ ...
question
History, 04.07.2021 06:40
Countries in Eastern Europe wanted democratic reforms. Sort the characteristics of each type of government. freedom of speech and the press Wes...
question
Business, 04.07.2021 06:40
Mức độ ảnh hưởng của nhóm tham khảo đối với hành vi khách hàng phụ thuộc vào các yếu tố, Ngoại trừ a. Kinh nghiệm b. Lối sống c. Sự thu h...
question
Mathematics, 04.07.2021 06:40
Find the values of x and y from the following equal ordered pairs. a) (x,-2) = (4,y) b) (3x, 4) = (6, 2y) c) (2x-1, y + 2) = (-1,2) d) (2x + 4, y + 5)...
question
Mathematics, 04.07.2021 06:40
Two similar circles are shown. The circumference of the larger circle, with radius OB, is 3 times the circumference of the smaller circle, with...
question
Mathematics, 04.07.2021 06:40
Can someone help me solve this? ...
question
Arts, 04.07.2021 06:40
Which ruler of Egypt threw out rigid traditions of Egyptian depiction and ushered in a. Of artistic experimentation...
More questions: Mathematics Another questions
Questions on the website: 13722361
See results (0)