there are 13 girls and 15 boys in a row.If a student is chosen at random, then find the probability that it is a boy
No. of girls: 13
No. of boys: 15
Total No. of students: 13 + 15 = 28
P(E) = No. of trials in which event has happened / Total No. of Trials
= 15/28
No. of boys: 15
Total No. of students: 13 + 15 = 28
P(E) = No. of trials in which event has happened / Total No. of Trials
= 15/28