Problema Solution
Suppose an experiment consists of randomly picking a card from a 52-card deck and then replacing the card. If the experiment were repeated 130 times, how many times would you predict the card would be an ace? (Note: There are four aces in a deck.)
Answer provided by our tutors
The probability of selecting ace is 4/130 = 2/65.
The number of aces you would expect to be selected in 130 attempts would be (2/65)× 130 = 2 × 2 = 4.