A cake shop bakes a variety of brownies. The top-selling brownies are ones with toppings of chocolate chips, walnuts, or both. A customer enters the store. The probability that the customer will choose chocolate chips is 0.2. The probability that they choose walnuts is 0.1. The probability that they pick both is 0.4. What is the probability that they will pick neither the chocolate chip nor the walnut toppings?

Question

anonymous · Answer

It is 1-0.2-0.1-0.4 = ?

justdoublechecking · Answer

That's what I thought too. It would be 0.3 then right?

justdoublechecking · Answer

The answers are:
a.0.5
b.0.3
c.0.45
d.0.8
e.0.2