Uri asked six friends how many different foreign countries theyíd been to. he recorded 0, 1, 1, 2, 5, and 9 countries visited.

what is the mean absolute deviation of the number of countries visited? round to the nearest tenth, if needed.

a.

0 countries

b.

2.7 countries

c.

2.9 countries

d.

3 countries

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

The solution set for 5v2 – 125 = 0 is

Suppose i flip two identical coins. what is the probability that i get one head and one tail?