Ihave $50 and i'm gambling on a series of coin ips. for each head i win $2 and for each tail i lose $1. what's the probability that i will run out of money

Three coins are flipped. what is the probability that there will be at least two tails?

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Iwill give you ! what is the measure of ∠v ?