100 people play only football , 30 only play basketball and 20 play both football and basketball
The question is to find
P(A)
P(B)
P(AUB)
Now after drawing a Venn diagram
P(A)=120/150
P(B)=50/150
P(AUB)=(100/150 + 50/150) -20/150 using the addition formula
= 1
is this the correct solution?