A ball is drawn at random from a box containing 6 red balls, 4 white balls and 5 blue balls. Determine the
probability that it is red ball or white ball.

1. during first 10 seconds 2. between 10 seconds and 35 seconds 3. during 35 seconds to 40 seconds

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)