Question

A bag contains 8 blue marbles, 6 green marbles, 12 yellow marbles, and 10 orange marbles. A marble is drawn at random from the bag.
What is the probability that the marble drawn will not be blue?
There are no answers.

Answer 1

Answer:

The probability that the marble drawn will not be blue is 7/9

Step-by-step explanation:

We have been given that

Number of blue marbles = 8

Total number of marbles = 8 + 6 + 12 +10 = 36

Probability of an event E is given by the formula

$P(E)=\frac{n(E)}{n(S)}$

Here, we have

n(E) = 8

n (S) = 36

Hence, the probability of getting a blue marble is

$P(E)=\frac{8}{36}\\\\=\frac{2}{9}$

Therefore, probability that the marble drawn will not be blue is given by

$1-P(E)\\\\=1-\frac{2}{9}\\\\=\frac{7}{9}$

Answer 2

Total Marbles = 8 + 6 + 12 + 10 = 36

Probability the marble is blue = 8/36

Inverse this to get the probability of the marble not being blue

Probability of the marble not being blue = 28/36 = 7/9