Mathematics, 06.03.2020 20:22 naomicervero
In a given population of two-earner male-female couples, male earnings have a mean of $40,000 per year and a standard deviation of $12,000. Female earnings have a mean of $45,000 per year and a standard deviation of $18,000. The correlation between male and female earnings for a couple is 0.80. Let C denote the combined earnings for a randomly selected couple. What is the mean of C? What is the covariance between male and female earnings? What is the standard deviation of C? Convert the answers to (a) through (c) from U. S. dollars ($) to euros (€).
Answers: 3
Another question on Mathematics
Mathematics, 21.06.2019 13:00
Acompany is making new soccer uniforms for a team. the company uses 2.5 yards of fabric for each shirt. the company uses 82.5 yards of fabric to make shirts and shorts for 15 players. the equation and solution below represents the situation. 15(2.5+x)=82.5; x=3 what does the solution, x=3, represent?
Answers: 1
Mathematics, 21.06.2019 14:10
What is an equation of the line that passes through the point (-2,3) and is parallel to the line whose equations is y=3/2x-4? i am stuck between y=3/2x or y=3/2x+6 : (
Answers: 2
Mathematics, 21.06.2019 16:30
Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88
Answers: 1
Mathematics, 21.06.2019 21:30
Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =
Answers: 3
You know the right answer?
In a given population of two-earner male-female couples, male earnings have a mean of $40,000 per ye...
Questions
History, 04.06.2020 13:29
Mathematics, 04.06.2020 13:29
Mathematics, 04.06.2020 13:29
Mathematics, 04.06.2020 13:29
Mathematics, 04.06.2020 13:29
Mathematics, 04.06.2020 13:29
Chemistry, 04.06.2020 13:29
Mathematics, 04.06.2020 13:29
