These marbles are randomly put in a bag and two of them are randomly drawn.
2 yellow, 3 pink 5 blue
what is the probability of drawing two pink marbles if the first one is not placed back into before the second draw
give your answer as a ratio, reduce to simplest terms
hint: multiply the probability of the first event to the second event two get your answer

Write an algebraic expression for the word expression the quotient of c and 8

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?

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions