Question

In a class of 40 students in which there are 16 girls ,10 students attained A grade of which 6 are boys . If a students is choosen at random from the class then find the probability of
(1)choosing a boy
(2)choosing a girl with A grade
(3)choosing a boy not with an A grade
(4)choosing a student not with an A grade

Answer 1

Answer:

Step-by-step explanation:

total students = 40

(1) prob. of choosing a boy is

no. of boys = 24

prob= 24/40=0.6

(2)girls with A grade= 4

prob.=40/4=0.1

(3)boys with not A grade=18

prob.=18/40=0.45

(4)students without A grade=30

prob.=30/40=0.75