if 2 coins are tossed 20 times, how many of those tosses would you expect to result in both coins landing heads up? show your calculations.
for each toss the probability of heads is 0.5
therefore the probability of heads for both coins is 0.5 * 0.5 = 0.25
5/20 times the coins will both be heads up.
is this all correct? any help would be appreciated. thanks
seems fine to me
why are there so many math questions now? 🙄
5 is the average number of times two heads will turn up. It is possible for anything from zero to 20 to happen though.