refer to the venn diagram to the right for events a and b in an equally likely sample space s. find the…

refer to the venn diagram to the right for events a and b in an equally likely sample space s. find the indicated probability. p(a∪b) p(a∪b)=□ (type a decimal.)
Answer
Explanation:
Step1: Calculate total number of elements in sample space
$40 + 10+30 + 20=100$
Step2: Calculate number of elements in $A\cup B$
$40+10 + 30=80$
Step3: Calculate $P(A\cup B)$
$P(A\cup B)=\frac{80}{100}=0.8$
Answer:
$0.8$