Mathematics, 13.04.2021 02:30 sadieismichaeljackso
Of nine executives in a business firm, four are married, three have never married and two are divorced. Three of the executives are to be selected for a promotion. Let Y1 denote the number of married executives and Y2 be the number of never-married executives among the three selected for promotion. Assuming that the three are randomly selected from the nine available.
a. Find the joint PMF for y1 and y2
b. Find the marginal probability distribution of y1
c. If we let y3 denote the number of divorced executives among the three selected for promotion. Find P(y3 =1 | y2 = 1)
d. Are Y1 and Y2 independent? Why?
e. Find cov(Y1,Y2). Does the sign surprise you? Why?
Answers: 1
Mathematics, 21.06.2019 13:30
The quadratic function h(t) = -16.1t^2 + 150 models a balls height, in feet, over time, in seconds, after its dropped from a 15 story building. from what height in feet was the ball dropped?
Answers: 2
Mathematics, 21.06.2019 16:00
What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9
Answers: 2
Mathematics, 21.06.2019 16:00
What are the related frequencies to the nearest hundredth of the columns of the two way table? group 1: a-102 b-34group 2: a-18 b-14edited: i don’t have all day to be waiting for an answer. i figured it out.
Answers: 2
Of nine executives in a business firm, four are married, three have never married and two are divorc...
Spanish, 12.10.2019 13:20
Advanced Placement (AP), 12.10.2019 13:30
Mathematics, 12.10.2019 13:30
Spanish, 12.10.2019 13:30
Mathematics, 12.10.2019 13:30
Health, 12.10.2019 13:30
Biology, 12.10.2019 13:30
Computers and Technology, 12.10.2019 13:30
Health, 12.10.2019 13:30
Mathematics, 12.10.2019 13:30
Biology, 12.10.2019 13:30
Physics, 12.10.2019 13:30
Biology, 12.10.2019 13:30
Social Studies, 12.10.2019 13:30
Business, 12.10.2019 13:30
Health, 12.10.2019 13:30