A bag contains 8 red marbles, 5 blue marbles and 7 green marbles. If three marbles
are drawn out of the bag, what is the probability, to the nearest 1000th, that all three
marbles drawn will be green?

Respuesta :

Answer:

0.031

Step-by-step explanation:

The probability of the first being green is 7/20, the second is 6/19 and the third is 5/18.  

7/20 x 6/19 x 5/18

Multiply these together to get the total probability:

0.03070175438

or

0.031

The probability to the nearest 1000th, that all three marbles drawn will be green is 0.0307

Probability-based problem:

What information do we have?

Number of red marbles = 8

Number of blue marbles = 5

Number of green marbles = 7

Total number of marbles = 8 + 5 +7

Total number of marbles = 20

Probability to the nearest 1000th, that all three marbles drawn will be green = (7/20) × (6/19) × (5/18)

Probability to the nearest 1000th, that all three marbles drawn will be green = 210 / 6,840

Probability to the nearest 1000th, that all three marbles drawn will be green = 0.0307

Find out more information about 'Probability'.

https://brainly.com/question/11234923?referrer=searchResults