104 students responses

21 liked sledding as their favorite winter activity if 500 people had. Responded, how many would have been expected to list sledding as their favorite winter activity? Round to the nearest whole person

3 answers

21/104 is the fraction observed. So,

21/104 * 500 will give the expected number
21/104 = x/500

Cross multiply and solve for x.

104x = 10,500

x = 100.96 = 101
101