Question

Jonathan and Tim want to predict how many quarters are in a large jar containing 120 coins. Jonathan randomly selects a sample of 10 coins from the jar, while Tim randomly selects a sample of 30 coins. Then they count the number of quarters in each sample. Whose sample should more accurately predict the number of quarters in the jar? sample should give a more accurate prediction of the number of quarters in the jar.

Answer 1

 the larger the sample the more accurate the prediction

 so since Tim looked at a larger quantity of coins his would be more accurate

Answer 2

Tim would give a sample that should more accurately predict the numbers in the jar. He has taken out 1/4 of the coins from the jar.