any class 11 student who think they are good at chemistry pls teach me orbitals and subshells stuff in live class by giving contact deltails please
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Total students =100
N(M)=45 N(M) represents number of students studying maths
N(P)=48
N(C)=40
N(M and P)=12,(M and C)=15,N(P and C)=11
N(M and P and C)=5
student studying only maths
=N(M)−N(M and P)−N(M and C)+N(M & P & C)
=45−12−15+5
=23
student studying only physics
=N(P)−N(P and M)−N(P and C)+N(P & M & C)
=48−12−11+5=30
students studying only chem
=N(C)−N(C and P)−N(C and M)+N(P and C & M)
=40−11−15+5=19
a) probability that student studies only one subject
=
100
19+30+23
=0.72
b) probability that student studies neither physics nor chemistry
= probability that student studies only Maths =
100
23
=0.23
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