- #1
kingyof2thejring
- 82
- 0
I've got a question here asking me to explain why events A and B cannot be mutually exclusive events.
P(A)=0.75
P(B)=0.65
And then to comment about P(AuB) and P(AuB)
I've started of by assuming that they are mutually exclusive
and used the addition formula
P(AuB) = P(A) + P(B)
to get an answer greater than 1 therefore cannot be probability function
but I haven't exactly proved that the events A and B are not mutually exclusive events.
Could someone please point me to the right direction.
Thanks in advance
P(A)=0.75
P(B)=0.65
And then to comment about P(AuB) and P(AuB)
I've started of by assuming that they are mutually exclusive
and used the addition formula
P(AuB) = P(A) + P(B)
to get an answer greater than 1 therefore cannot be probability function
but I haven't exactly proved that the events A and B are not mutually exclusive events.
Could someone please point me to the right direction.
Thanks in advance