Girls' soccer 60% Girls' lacrosse55%
Boys basketball 75%
Boys soccer 35%

All four teams are scheduled to play today. The school's athletic director wants to know the
probability that at least one team will win today, based on the data. She assumes that each team's
winning or losing is independent of all the other teams' results. Complete parts a-f to find the
probability the director wants.
a. What is the probability that the boys' baseball team or boys' soccer team will win today?
26.257.
b. What is the probability that a boys' team will win today?
c. What is the probability that the girls' soccer team or girls' lacrosse team will win today?
d. What is the probability that a girls' team will win today?
e. What is the probability that a boys' team or a girls' team will win today?
f. What is the probability that at least one team will win today?