12 a box contains 5 blue balls, 3 black balls and 2
red bals of the same size. a ball is selected at
random from the box and then replaced. a second
ball is then selected find the probability of
obtaining (a) two red balls. (b) two blue balls or
w black basic) one black ball and one red
palany order

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

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?

What is x3+3x2−16x−48 divided by x−1?