Question

A jar contains many coins. The probability that a coin randomly selected from the jar is a penny is 10%. A week later, the probability that a coin randomly selected is a penny is 8%.
Which statement about the jar is true the second time, as compared to a week earlier?

1. The jar has fewer coins in total.
2. The jar has fewer pennies.
3. The jar has more coins, or fewer pennies, or both.
4. The jar has more coins in total.

Answer 1

4. The Jar Has More Coins. This is because to go from 10% to 8% the number of coins besides penny's has to increase

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