Question

In a
a class in which all students
practice at least one sport, 60% of
students play soccer or basketball and
10% practice both sports. If there are
also 60% students that do not play
soccer, the probability that a student
chosen at random from the class, play
soccer only, is:​

Answer 1

total Probability = 1

so 60 % student do not play soccer

so,

1 - 0.6 = 0.4

and 10 % student play both

so 0.4 - 0.1 = 0.3