5 part 2

Question 1

What are the properties of a binomial experiment

Answer 1

1. experiment consists of n identical trails (fixed # of trials)
2. 2 outcomes are possible on each trial (success or failure)
3. The prob. of a success is denoted by p does NOT change from trial to trail
   - the prob of a failure 1-p does not change from trail to trail
4. the trials are independent

Question 2

Bernoulli Process involves what properties of a binomial experiment

Answer 2

2,3 and 4

Question 3

What is the formula to compute expected value for a binomial experiment

Answer 3

E(x) = M = np

Question 4

What is the formula to compute the variance for a binomial experiment

Answer 4

Var (x) = Q squared = np (1-p)

Question 5

What is easier the formula or using a table for a binomial experiment

Answer 5

• generally easier and faster than the formula

- also there are software packages and spreadsheets

Question 6

At least one successes in 2 trails

Answer 6

P(x>=1) = f(1)+f(2)

Question 7

What is the Possion Probability Distribution

Answer 7

• often used to model random arrivals in waiting lines situations
• useful in estimating the # of occurrances over a specified interval of time or space

Question 8

What are the properties of a Possion Experiment

Answer 8

1. the prov of an occurrence is the same for any 2 intervals of equal length
2. the occurrence OR nonoccurrence in any interval is independent of the occrrence or nonoccurrence in any other interval

Question 9

What are the properties of a Possion Experiment

Answer 9

1. the prov of an occurrence is the same for any 2 intervals of equal length
2. the occurrence OR nonoccurrence in any interval is independent of the occurrence or nonoccurrence in any other interval

Question 10

When do you use the Hypergeometric

Answer 10

• closely related to binomial but NO REPLACEMENT

Question 11

What are the properties of Hypergeometric

Answer 11

1. Trials are NOT INDEPENDENT

2. prov of success changes form tiral to trial

Question 12

What are the properties of Hypergeometric

Answer 12

1. Trials are NOT INDEPENDENT

2. prob of success changes form trial to trial