Question

A bag contains 8 purple marbles & 12 green marbles. You choose one marble out of the bag without looking.

What is the probability that you choose a purple marble.

What is the probability of you choosing a green marble​

Answer 1

1. P(P) = 8/20 = 0.4

2. P(G) = 12/20 = 0.6

Explanation:

Given;

Number of green marbles G = 12

Number of purple marbles P = 8

Total T = 12+8 = 20

The probability that you choose a purple marble P(P) is;

P(P) = number of purple marbles/total number of marbles

P(P) = P/T = 8/20 = 0.4

P(P) = 0.4

The probability that you choose a Green marble P(G) is;

P(G) = number of Green marbles/total number of marbles

P(G) = G/T = 12/20 = 0.6

P(G) = 0.6