Statistics Questions
1. An event that is impossible has a probability of?
2. The sum of the probabilities in a probability model should add up to?
3. Suppose the probability of winning at a particular game is .52 (or 52%). Choose the co
ect options below:
The probability of .52 means that approximately__(52%,52,100,0.52)out of every __(0.52,100,52,52%)game will result in a win. We__(will,will not) always win exactly that many times since the probability refers to the expected__(long term, short term)odds of winning.
4. Suppose that 17% of all M&Ms are red. If we randomly select a single M&M, what is the probability that it is red? (Decimal form)
5. Let the sample space S= {123456} with each outcome being equally likely to let E= “An even number bigger than 3”. (3 decimal places). Find P(E)
6. Let the sample space S= {123456} with each outcome being equally likely to let E= “An even number bigger than 3”. (3 decimal places). Find P(E,(floating c above E here)
7. A bag contains 25 ma
les: 4 red, 11 blue, and 10 green. What is the probability that a randomly selected ma
le is blue?
8. A bag contains 25 ma
les 4 red, 11 blue, and 10 green. What is the probability that a randomly selected ma
le is green?
9. When two events, E and F, are mutually exclusive, then the P(E and F)=
10. Suppose E and F are mutually exclusive events with P(E)=0.36 and P (F)=0.15. Find P(E or F)
11. Suppose E and F are dependent events with: P(E)=0.36, P (F)=0.15, and P (E)=0.02. Find P (Eor F)
12. Suppose you are rolling a six sided dice and event E= “A number less than 4” which of the following best describes the elements of event E(floating c above E here)
a) {5.6}
) {1,2,3,4,5,6}
c) {4,5,6}
d) {1,2,3,4}