1. 5.2-5.4 REVIEW

2. IS THE FOLLOWING A PROBABILITY DISTRIBUTION? XP(x) 1.4 2.35 3.2 4.05

3. FIND THE MEAN OF THE PROBABILITY DISTRIBUTION XP(x) 1.4 2.35 3.2 4.05

4. FIND THE MEAN AND STANDARD DEVIATION You pay $10 to enter a raffle in which you have a.04 chance of winning $1,000. What is the expected value and standard deviation of your earnings?

5. IS THIS RESULT UNUSUAL? There is a 0.1919 probability that the world series lasts 4 games, 0.2121 that it lasts 5, 0.2222 that it lasts 6, and 0.3737 that it lasts 7. Is it unusual for the series to end in 4 games?

6. FIND THE PROBABILITY You have a slot machine programmed to have a 1/2000 chance of a jackpot. Find the probability of getting exactly 2 jackpots in 5 trials.

7. FIND THE PROBABILITY There is a 95% probability that an Oswego student can read at above a 5 th grade level. If you randomly select 8 students, what’s the probability that at least 6 can read at this level?

8. FIND THE MEAN AND STANDARD DEVIATION There is a 30% chance of reaching base in a baseball game. What’s the expected value of times reaching base in 100 at bats?’ What’s the standard deviation? Would it be unusual to reach base 43 times?