Question

*Will fan and Medal* Jonathan's piggy bank contains 20 nickels, 30 quarters, and 50 one-dollar coins. He picks 20 coins from the bank at random; 12 of these coins are one-dollar coins. The theoretical probability of picking a one-dollar coin from the piggy bank before the draw is BLANK %, but the experimental probability, based on the draw, is BLANK %. What is blank 1? What is blank 2?

Answer 1

If we sum up all the coins in the piggy bank, we get 100 coins. Since there are 50 one-dollar coin in the bank, the probability of picking a one-dollar coin out of the 100 coins is 50/100 which is equal to 50%.

For the second blank, the experimental probability is equal to 12/50 which is equal to 24%.