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Probability, SM-Bank 038 MC

Bryce has a bag of marbles. 80% of his marbles are red.

Bryce takes a yellow marble from his bag and loses it in a game.

If he takes another marble from the bag without looking, what are the chances it is red?

  1. greater than 80%
  2. equal to 80%
  3. less than 80%
  4. there is not enough information to predict the chance
Show Answers Only

\(A\)

Show Worked Solution

\(\text{There will be greater than 80% chance}\)

\(\text{because there are the same amount of }\)

\(\text{red marbles to be chosen but 1 less}\)

\(\text{marble in the bag.}\)

 
\(\Rightarrow A\)