Question

The given table shows the month of birth of 40 students.Month Jan Feb Mar Apr May June July Aug Sep Oct Nov DecNumberofstudents3 4 2 2 5 1 2 6 3 4 4 4(a)Find the probability that a student was born in the month with 31 days

Answer 1

total students = 40
number of favourable outcomes
=25
probability = 25/40=5/8

Answer 2

here no.of students born in the month with 31 days=3+2+5+2+6+4+4=26
total no.of students=40
so P(e,)=26/40=13/20