1. Gordon has 25 gum balls in a bag. He has 7 red, 5 green, 2 yellow,
4 orange, 1 black, and 6 purple gum balls.
He reaches into the bag without looking and pulls out one gum ball.
Write a fraction, a decimal, and a percent to describe the probability
of Gordon picking each colour of gum ball.
a) purple:
b) black:
c) pink:
d) red or yellow: