About 20% of the population of a large country is nervous around strangers. if two people are randomly selected, what is the probability both are nervous around strangers? what is the probability at least one is nervous around strangers? (a) the probability that both will be nervous around strangers is . 04. (round to four decimal places as needed.) (b) the probability that at least one person is nervous around strangers is nothing. (round to four decimal places as needed.)

In the proof of the triangle angle sum theorem, you must draw an auxiliary line. which construction must you use to draw this line?

Adriano loves anime and collects toys from his favorite series. each month he gains 4 toys. if adriano has 3 toys when he starts collecting, how many does he have after 4 months

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?