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secondary 4 | A Maths
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Georgia Jansen
Georgia Jansen

secondary 4 chevron_right A Maths chevron_right Singapore

Just need part 2

Date Posted: 4 months ago
Views: 18
J
J
4 months ago
Case 1 : teacher picks a boy from class A.

Probability = 18/35 x 15/37 = 270/1295

Case 2 : teacher picks a girl from Class A.

Probability = 17/35 x 14/37 = 238/1295

Required probability
= 270/1295 + 238/1295
= 508/1295

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Nithiya ong
Nithiya Ong's answer
1 answers (A Helpful Person)
1st
Here you go lol