PROBABILITIES PLEASE FEEL FREE TO CONTACT ME IF ANSWERS ARE NEEDED!!!!

1. Probability Practice Probability Practice
Consider the letters of the word "PAPER." Consider the letters of the word "PAPER."
1. What is the probability of randomly choosing a 1. What is the probability of randomly choosing a
letter and having it be a P? letter and having it be a P?
2. What is the probability of randomly choosing a 2. What is the probability of randomly choosing a
letter and having it be an R? letter and having it be an R?
3. What is the probability of randomly choosing a 3. What is the probability of randomly choosing a
letter and having it be a P or an R? letter and having it be a P or an R?
4. What is the probability of randomly choosing a 4. What is the probability of randomly choosing a
letter and having it be a P or an A or an E? letter and having it be a P or an A or an E?
5. What is the probability of randomly choosing a 5. What is the probability of randomly choosing a
letter and having it be a Q ? letter and having it be a Q ?
The jar to the right has four The jar to the right has four
black marbles and three white black marbles and three white
marbles. marbles.
6. What is the probability of 6. What is the probability of
randomly choosing a marble and randomly choosing a marble and
having it be black? having it be black?
7. What is the probability of 7. What is the probability of
randomly choosing TWO marbles with randomly choosing TWO marbles with
replacement and having both be black? replacement and having both be black?
(that is, take a marble, put it back, then (that is, take a marble, put it back, then
take another marble) take another marble)
8. What is the probability of 8. What is the probability of
randomly choosing TWO marbles with randomly choosing TWO marbles with
replacement and having both be white? replacement and having both be white?
(that is, take a marble, put it back, then (that is, take a marble, put it back, then
take another marble) take another marble)
9. What is the probability of 9. What is the probability of
randomly choosing TWO marbles WITHOUT randomly choosing TWO marbles WITHOUT
replacement and having both be black? replacement and having both be black?
(that is, take a marble, then take another marble (that is, take a marble, then take another marble
without putting the other back) without putting the other back)
10. What is the probability of choosing a marble at 10. What is the probability of choosing a marble at
random and getting either black OR white? random and getting either black OR white?