Question

A bag contains eight red marbles and 12 green marbles you choose a marble out of the bag without looking what is the probability that you choose a red marble

Answer 1

2/5

Explanation:

Probability of choosing red = total red marbles / sum of marbles in the bag

sum of marbles in the bag = 12 + 8 = 20

8/20 = 2/5

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one ids attached to the event. If it doesn't a value of zero is attached to the event.