Problema Solution
a survey of 1,000 people was completed by the San Francisco chronicle. 72% of the respondents did not know their representatives in congress. how many people knew the name of their congressman? how many did not?
Answer provided by our tutors
72% of the respondents did not know their representatives in congress, or in numbers, it would be 72% of 1,000:
0.72*1,000 = 720 people did not know their representatives in congress
The rest of the people, 1,000 - 720 = 280 people knew the name of their congressman.