Question

Do you know and understand the three methods used to identify sample spaces?

Answer 1

@Vocaloid

Answer 2

...well, do you?

Answer 3

A well-defined sample space is one of three basic elements in a probabilistic model (a probability space); the other two are a well-defined set of possible events (a sigma-algebra) and a probability assigned to each event (a probability measure function).

Answer 4

no but can you explain what the three methods used to identify sample spaces are? @Vocaloid

Answer 5

well all it is is all of a sample or what you are testing i've never heard of 3 ways to identify it and im in Stat 3

Answer 6

hm, is there like a textbook or something that goes with your class?

Answer 7

I guess it would be something like:

1. counting principle
2. tree diagram
3. ????

Answer 8

yea its probably a text book method

Answer 9

i dont know :(

Answer 10

for the third one, I would guess making a table or just listing out outcomes

Answer 11

could it be these three?

1. independent event
2. compound event
3. tree diagram

Answer 12

maybe, where did you find those answers?

Answer 13

in my textbook

Answer 14

go with that then

Answer 15

ok i have more questions :)

Answer 16

Describe and give an example of a compound event?

Answer 17

@Vocaloid

Answer 18

If you flip three fair coins, what is the probability that you'll get heads on the first two flips and tails on the last flip?

Answer 19

is an example

Answer 20

^

Answer 21

whats the answer to that example?

Answer 22

uh, the question just asked to describe and give an example, but if you want the answer...

Answer 23

flipping three coins means that we can consider each coin separately

1. heads on first flip
2. tails on second flip
3. tails on third flip

calculate each of those three probabilities separately, then multiply

Answer 24

yea

Answer 25

so whats the answer?

Answer 26

.125

Answer 27

or .5^3

Answer 28

but do you understand how to find that answer geny?

Answer 29

that's the important part

Answer 30

yes :)

Answer 31

explain then

Answer 32

oh i was writing an explanation lol

Answer 33

geny, please explain how musicdude got the answer 0.5^3

Answer 34

i dont know.. im sorry i didnt want to sound dumb if i said no :(

Answer 35

its .5 *.5*.5 because it is a 1/2 prob of happening for each

Answer 36

do get why now?

Answer 37

yea

Answer 38

its 3 different probs you multiply together because they are compound

Answer 39

so the answer is 0.5^3. How do you say that answer in words?

Answer 40

is it zero . five to the power of 3?

Answer 41

yeah, or just 0.125, or 1/8

Answer 42

0.5^3 = 0.125 = 1/8

take your pick

Answer 43

awesome. thanks :)