Question

Assume that 175 surveys are completed. Of those surveyed, 79 responded positively to effectiveness, 83 responded positively to side effects, and 79 responded positively to cost. Also, 37 responded positively to both effectiveness and side effects, 40 to effectiveness and cost, 36 to side effects and cost, and 27 to none of the items. How many responded positively to all three?

Answer 1

@dan815 @ganeshie8 @Nnesha

Answer 2

Label the unknowns
positive effectiveness = e, side effects = s, cost = c
e = 79
s= 83
c= 79
maybe i should label the parts of the venn diagram , individually