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
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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
abhayjulurip5xtrg:
opps, messed up a small bit in(1) take care of it, sorry
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