A box contains 150 black pens and 50 red pens. Jose said the sum of the probability that a randomly selected pen will not be black and the probability that the pen will not be red is 1. Explain whether you agree.
Box contains = 150 Black pens and 50 red pens Ratio = black pen : red pen 150 : 50 dividing both sides by 50 3 : 1 The ratio is 3 black pens for 1. Jose said wrong. OmG jose is a liar! xD
