Question

what us a way to understand the difference between mutually exclusive events and not mutually exclusive events?

Answer 1

If events A and B are mutually exclusive events they cannot occur at the same time

Answer 2

as sets mutually exclusive means
\[A\cap B=\emptyset\]

Answer 3

ok thanks ..does it work for numbers?

Answer 4

but langrangeson has better explanation

Answer 5

no numbers are not sets. in probability if the events are mutually exclusive it means
\[P(A\cap B)=0\]

Answer 6

what does the upside down U mean?

Answer 7

it also means that
\[P(A) \cup P(B)=P(A)+P(B)\]

Answer 8

my definition works under the assumption that you were talking about stats

Answer 9

upside down U means intersection. nothing is in common to both

Answer 10

ok thanks

Answer 11

yw