Emma has a bag of marbles. There are 9 pink, 5 red, 8 green, 2 blue, and 6 white marbles in the bag. Calculate the complement of not picking a pink marble.
First, we calculate the total number of marbles in the bag:
Total number of marbles = 9 pink + 5 red + 8 green + 2 blue + 6 white
Total number of marbles = 30 marbles
Next, we calculate the probability of picking a pink marble:
Probability of picking a pink marble = Number of pink marbles / Total number of marbles
Probability of picking a pink marble = 9 / 30
Probability of picking a pink marble = 0.3
The complement of not picking a pink marble is the probability of picking a marble that is not pink:
Probability of not picking a pink marble = 1 - Probability of picking a pink marble
Probability of not picking a pink marble = 1 - 0.3
Probability of not picking a pink marble = 0.7
Therefore, the complement of not picking a pink marble is 0.7 or 70%.