Question

!! HELP ASAP!! A bag has 5 yellow marbles, 3 red marbles, and 2 blue marbles. Quinn randomly picks a marble from the bag and returns it before another is
picked.
How many times would Quinn expect to pick a blue marble if he picks a marble 200 times?

Answer 1

Answer:

40 blue marbles

Step-by-step explanation:

First find the probability of a blue marble

P (blue) = number of blue marbles / total marbles

             = 2 blue/ ( 5+3+2) total

              = 2/10

               =1/5

We can use this since we return the marble to the bag each time

We multiply this by 200 for the number of times it is picked

200 * 1/5 = 40

We should expect to pick 40 blue marbles