Question

understanding probability
understanding opposite events
a bag contains 2 blue, 1 red, and 2 purple marbl
the complement of choosing a red marble is
choosing a purple marble
choosing a blue marble
choosing a blue or
purple marble

Explanation:

Step1: Find total number of marbles

Total marbles = \(2 + 1+2=5\)

Step2: Use complement rule

Complement of choosing red is not - choosing red. Number of non - red marbles \(=2 + 2=4\)
Probability of complement \(=\frac{4}{5}\)

Answer:

choosing a blue or purple marble