Ms. simon uses six different colored pens to grade papers. she has one of each of the following colors: red, purple, green, blue, orange, and black. determine which statements are true.
the probability of randomly choosing a black pen is .
the probability of randomly choosing either a red or blue pen is .
the probability of randomly choosing an orange pen is about 0.17.
the probability of randomly not choosing a purple or blue pen is about 0.67.
the probability of randomly not choosing a black pen is .
the probability of randomly choosing a green or red pen is about 0.5.