Question

Type the correct answer in each box. If necessary, use / for the fraction bar. A bag contains 5 blue marbles, 2 black marbles, and 3 red marbles. A marble is randomly drawn from the bag. The probability of not drawing a black marble is ? The probability of drawing a red marble is ?

Answer 1

Answer:

P (not drawing a black marble) =  4/5

P (red marble) = 3/10

Step-by-step explanation:

The total number of marbles is

5 blue marbles +2 black marbles+ 3 red marbles = 10 marbles

P (not drawing a black marble) =

The marbles that are not black/ total marbles

(blue + red)/ total

(5+3)/10

8/10

4/5

P (red marble) =   red marble/ total

                         = 3/10

Answer 2

The probability of not drawing a black marble is 8/10 and the probability of drawing a red marble is 3/10.

What is probability?

Probability is the ratio of the number of favorable outcomes that produce a certain event to the total number of possible outcomes.

There are 10 marbles in the bag. Out of which 2 are black.

Therefore:

$P(\text{not drawing a black marble})=\frac{\text{Total number of marbles that aren't black}}{\text{Total number of marbles}} \\=\frac{8}{10}$

Similarly, the total number of red marbles is 3.

Therefore:

$P(\text{Drawing a red marble})=\frac{\text{Total number of red marbles}}{\text{Total number of marbles}} \\=\frac{3}{10}$

Thus, the probability of not drawing a black marble is 8/10 and the probability of drawing a red marble is 3/10.

Learn more about probability here-https://brainly.com/question/1109303

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