In a recent survey of 50 ten year olds, it was discovered that 14 liked both McDonalds and Burger King. Overall, 36 of the children surveyed liked McDonalds and 24 liked Burger King. How many children surveyed did not like niether restaurant? So statistical thinking to support answer!

Question

hartnn · Answer

what have you tried?

hartnn · Answer

$(A' \cap B'  ) = (A \cup B)'   \ A\cup B = A+B-A \cap B$

howard-wolowitz · Answer

well this: N(not McD and not BK)=Total N - N(McD or BK) = 50-46 = 4

howard-wolowitz · Answer

@hartnn  i did work son

hartnn · Answer

ok, 
50 - (36+24-14)  = 50 - 46 = 4
yep, you're correct :)