Step 3 of 3: Draw a conclusion and interpret the decision.

A teacher wants to assign 4 different tasks to her 4 students. In how many possible ways can she do it? a.24           b. 12         c. 6        d. 42

A merchant surveyed 540 people to determine the way they learned about an upcoming sale. The survey showed that 210 learned about the sale from the​ radio, 250 from​ television, 200 from the​ newspaper, 100 from radio and​ television, 50 from radio and​ newspapers, 90 from television and​ newspapers, and 30 from all three sources. How many people learned of the sale from newspapers or​ radio, but not​ both?

Provide the complete solution and illustration

We survey 200 students, and ask each whether they like donuts, pizza, and/or tacos. Every student liked at least one of them. - 100 students liked donuts - 80 students liked pizza - 100 students liked tacos - 10 students liked all three options How many students liked exactly two of the options? Type your answer.

Q. There are 10 people stand in a line to take a photo. Two photos are said different if at least two people's positions are changed. How many different photos can we take?