Mathematics, 13.10.2020 04:01, kailahgranger
Two random variables x and y are independent if the value of x does not affect the value of y. If the variables are not independent, they are dependent. A new random variable can be formed by finding the sum or difference of random variables. If a random variable x has mean μx and a random variable y has mean μy then the means of the sum and difference of the variables are given by the following equations. μx+y=μx+μy μx−y=μx−μy The distribution of a test's scores for college-bound male seniors has a mean of 1528 and a standard deviation of 319. The distribution of a test's scores for college-bound female seniors has a mean of 1498 and a standard deviation of 304. One male and one female are randomly selected. Assume their scores are independent. What is the average sum of their scores? What is the average difference of their scores?
Answers: 2
Mathematics, 21.06.2019 17:30, madelyngv97
Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8
Answers: 1
Mathematics, 21.06.2019 19:00, lightning1157blaze
The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels
Answers: 2
Mathematics, 21.06.2019 21:00, batmanmarie2004
The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?
Answers: 1
Mathematics, 22.06.2019 03:00, sairaanwar67
For the following equations, find the ratio of a to b. be sure to show all of your work. a. 3a = 6b b. 15a = 5b
Answers: 2
Two random variables x and y are independent if the value of x does not affect the value of y. If th...
Mathematics, 08.10.2019 00:00
Spanish, 08.10.2019 00:00
Computers and Technology, 08.10.2019 00:00
Physics, 08.10.2019 00:00