Sara and zoe are the only people in an economy. the following data tells you about their purchases of soda.
sara bought 3 bottles when the price is $3 a bottle, 4 bottles when the price is $2 a bottle, and 5 bottles when the price was $1 a bottle.
zoe bought no soda when the price was $3 a bottle, 2 bottles when the price is $2 a bottle, and 3 bottles when the price was $1 a bottle.
in the market for soda, the quantity demanded is

a. 4 bottles at $2
b. 5 bottles at $1
c. 5 bottles at $3
d. 6 bottles at $2

You have $22,000 to invest in a stock portfolio. your choices are stock x with an expected return of 11 percent and stock y with an expected return of 13 percent. if your goal is to create a portfolio with an expected return of 11.74 percent, how much money will you invest in stock x? in stock y?

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups.b. we cannot infer anything from these data since the distribution of salaries is likely right skewed.c. you cannot draw any valid conclusions because the sample sizes are different.d. more students should complete internships because having an internship produces a higher salary.

Fractional reserve banking which of the following statements about fractional reserve banking are correct? check all that apply. fractional reserve banking allows banks to create money through the lending process. fractional reserve banking does not allow banks to hold excess reserves. fractional reserve banking allows banks to create additional wealth by lending some reserves. fractional reserve banking relies on everyone not withdrawing their money at the same time.