Chapter 4

Question 1

the three probability distributions

Answer 1

-discrete: big umbrella
-binomial: fixed, success/failure
-poisson: how many times, over time, space, lambda
-geometric: trials until success, probability same each time, all failures first except the last one eg 5/6 then 1/6 for dye

Question 2

Discrete probability has two characteristics

Answer 2

1. each probability is between 0 and 1
2. the sum of probabilities is 1

Question 3

go over examples in this chapter!

Answer 3

!

Question 4

binomial distribution p and q

Answer 4

p=success
q=failure
n trials= repeated

Question 5

write formulas and which its used for

Answer 5

each dist

Question 6

expected values is referred to

Answer 6

average/mean

Question 7

how to do geometric

Answer 7

failure, failure, success, stop

-same number multiplied till the success number on the n trail

Question 8

notations

Answer 8

-binomial = X- B(n,p)
-geo= X-G (p)

Question 9

what happens if it asked more than but we dont know our n trials

Answer 9

go 1- all probabilities