141k views
5 votes
Dylan has a bag containing 15 marbles. The table below shows the number ofmarbles of each color in the bag. As part of a probability experiment for his scienceclass, Dylan randomly picks a marble from the bag and the replaces it. He repeatsthis 300 times.Dylan randomly picks a marble from the bag. What is the probability the marble willbe red?A. 3/15B. 8/15C. 7/15D. 1/15

Dylan has a bag containing 15 marbles. The table below shows the number ofmarbles-example-1

1 Answer

3 votes

Step-by-step explanation

Since Dylan replaces the picked marble everytime, each pick is independent from the others.

From the numbers, we can see that we have 8 red marbles and, adding them all we can get the total number of marbles:


3+8+3+1=15

So, the probability will be the number of possible outcomes we want, which is 8 because there are 8 red marbles, divided by the total number of possible outcomes, which is 15, the total number of marbles:


P=(8)/(15)

Answer

The probability is 8/15.

User Vinod Vishwanath
by
3.3k points