Question

In a classroom of 31 students, 3 students say their favorite sport is football, 2

students say their favorite sport is lacrosse, 3 students say their favorite
sport is swimming, and 23 students say their favorite sport is soccer.
a) What are the odds that a student’s favorite sport is soccer?
b) What are the odds against a student’s favorite sport is soccer?
c) What are the odds against a student’s favorite sport is swimming?
d) What are the odds that a student’s favorite sport is lacrosse?

Answer 1

a) The probability is 23/31. There are 31 total students, and 23 like soccer the best.

b) The probability is 8/31. There are 31 total students, and 31-23 = 8 don't like soccer the best.

c) The probability is 28/31. There are 31 total students, and 31-3 = 28 don't like swimming the best.

d) The probability is 2/31. There are 31 total students, and 2 like lacrosse the best.