Question

How to Solve P(AorB) when P(A) is 230/580 and P(B) 200/580?

Answer 1

you need more information to do this problem

Answer 2

i too carry the same feeling zarkon

Answer 3

but i thought it may be related to set theory

Answer 4

All probability is related to set theory

Answer 5

every event is a set

Answer 6

I am sorry its just a very very long problem. So I was just trying to give you the basic. Its with probability. I just dont know how to solve problem regarding probability when it has OR in it.

Answer 7

\[P(A\text{ or }B)=P(A)+P(B)-P(A\text{ and }B)\]

Answer 8

so you cant find P(A or B) without knowing P(A and B)

Answer 9

To find P (A and B) dont u just add the P(A) and P(B) together?

Answer 10

no

Answer 11

are A and B independent?

Answer 12

are A and B mutually exclusive?

Answer 13

if A & B are disjoint events in that case i feel we can @ zarkon

Answer 14

if A and B are m.e. or disjoint then P(A and B)=0 and thus
P(A or B)=P(A)+P(B)

Answer 15

but that wasn't stated in the original post

Answer 16

A. is the students selected is a republican and B. The students selected Approves the use of nuclear power for consumer enegery.

Answer 17

means they are disjoint sets

Answer 18

that still doesn't totally help...those events might be independent ...maybe

Answer 19

there could be a republican student that approves the use of nuclear power...so thae are not disjoint

Answer 20

ok

Answer 21

is this problem in the section of your book on independence?

Answer 22

Its our teachers own notes she writes up for us. It does talk about independent and disjoint.

Answer 23

did you write out the entire problem?

Answer 24

Not but I gotta go to class right now. But thank you guys trying!