Name: Anonymous 2007-04-25 0:27 ID:VFg69vwT
time for retarded questions
2) In a large vat of marbles, 30% are brown, 20% are red, 20% are yellow, 10% are green, 10% are orange, and the rest are blue. If a marble is drawn at random, what’s the probability that it’s (a) red or green (b) not yellow (c) neither yellow nor blue. If four marbles are drawn at random what’s the probability that (d) all are yellow (e) none are brown (f) exactly one is brown (g) at least one is brown (h) the first marble or the last marble is brown
Whats the formula for (f)? thanks!
2) In a large vat of marbles, 30% are brown, 20% are red, 20% are yellow, 10% are green, 10% are orange, and the rest are blue. If a marble is drawn at random, what’s the probability that it’s (a) red or green (b) not yellow (c) neither yellow nor blue. If four marbles are drawn at random what’s the probability that (d) all are yellow (e) none are brown (f) exactly one is brown (g) at least one is brown (h) the first marble or the last marble is brown
Whats the formula for (f)? thanks!