Question

One marble jar has several different colored marbles inside of it. It has 1 red, 2 green, 4 blue, and 8 yellow marbles. All the marbles are the same size and shape. If Farid takes out a marble from the jar without looking, what is the probability that he will NOT choose a yellow marble

Answer 1

Probability of not yellow marbles=no.of favorable outcomes÷total no. of outcomes
=1+2+4÷15
=7÷15


Hope u understand buddy!!:-)

Answer 2

Given:

the number of red marbles = 1

the number of green marbles = 2

the number of blue marbles = 4

the number of yellow marbles = 8

To find:

Probability of not choosing a yellow marble.

Solution:

We will first find the total number of marbles present in the jar

Total number of marbles = 1 + 2 + 4 + 8 = 15

Number of marbles which are yellow = 8

The probability of choosing a yellow marble = 8/15 = 0.533

Therefore, the probability of not choosing a yellow marble = 1 - 0.533 = 0.466