Question

A bag contains 40 marbles, 4 of which are blue, 10 are red, 25 are green, and 1 is purple. Shawna takes a marble out of the bag, records the color, and returns it to the bag. How many green marbles should she expect after 400 trials? 25 40 100 250

Answer 1

250 because 25 is 63% of 40 and 250 is 63% of 400.

Answer 2

Answer: The number of green marbles should expect after 400 trials = 250

Explanation:

Given: The total number of marbles in the bag = 40

The number of green marbles in the bag = 25

The probability or chances for choosing green marble =
`(25)/(40)=(5)/(8)`

In 400 trials , the number of green marbles should expect =
`(5)/(8)*400=250`

Hence, the number of green marbles should expect after 400 trials = 250