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Ellen has a bag with 333 red marbles and 222 blue marbles in it. She is going to randomly draw a marble from the bag 300300300 times, putting the marble back in the bag after each draw. 3 red marbles and 2 blue marbles What is the best prediction for the number of times that Ellen will draw a blue marble

2 Answers

1 vote

Answer: close to 120 but probably not 120

Explanation:

User Korikulum
by
7.1k points
5 votes

The correct question is;

Ellen has a bag with 3 red marbles and 2 blue marbles in it. she is going to randomly draw a marble from the bag 300 times, putting the marble back in the bag after each draw. what is the best prediction for the number of times that ellen will draw a blue marble?

Answer:

120 times

Explanation:

We are given;

Red Marbles = 3

Blue Marbles = 2

Thus;

Total Marbles = 3 + 2 = 5

Probability of of Blue Marbles;

P(B) = 2/5

Total number of Draws = 300

Hence, best prediction for the number of times that ellen will draw a blue marble = 300 x (2/5)

= 120

Thus, prediction is 120 Times that Ellen will Draw Blue Marbles

User Daniel Valland
by
7.5k points