Answer:
Both are wrong.
Step-by-step explanation:
We have that:
Both decomposed the fraction 
into a sum of fractions. Whoever's decomposition sum has a value of is correct.
David:
, which means that David is wrong.
Patti
, which means that Patti is wrong.
So the answer is that both are wrong.
<span>Residents who are under 25 years and those above are mutually exclusive.
Let V = number of persons who take Vanilla under 25yrs and V' be the number of residents who are at least 25yrs who take Vanilla.
Okay, so P(V) = 40/150 and P(V') = 15/150
P(V or V') = 40/150 + 15/150 = 0.366</span>
-5/6 try writing as improper fractions and then divide
