In a given population of two-earning male-female couples, male earnings have a mean of 50,000 USD per year and a standard deviation of 15,000 USD. Female earnings 48,000 USD per year and a standard deviation of 13,000 USD. The correlation between male and female earnings for a couple is 0.90, Let C be be the combined earnings for a randomly selected couple • What is the mean of C

$32,660

step-by-step explanation:

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

13cm

step-by-step explanation:

(apex)

a. 32 degrees

step-by-step explanation:

here we have to use the rule.

m∠e = 1/2 (major arc - minor arc)

m∠e = 1/2 (212 - 148)

m∠e = 1/2 (64)

m∠e = 32 degrees

answer: a. 32 degrees

you