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Exam
Numerical Ability
The probability of getting at least 2 head when tossing a coin 3 times
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- favourable case=4 (hhh,hht,hth,thh)
total case = 8(hhh,hht,hth,htt,thh,tht,tth,ttt)
prob =4/8. - 9 years agoHelpfull: Yes(1) No(0)
- when coins is tossed we have 2 chances either head or tail so when 3 coins tossed it will be 2^3
favaourable cases for above are hhh,hht,thh,hth: 4
required probabilty is 4/8=1/2 - 9 years agoHelpfull: Yes(1) No(0)
- 3 coins means 2^3 pairs means 8 pairs.hhh,hht,hth,htt,thh,tht,tth,ttt. now u can count 2 head will comes in 4
- 9 years agoHelpfull: Yes(0) No(0)
- but it is given 'a' coin for 3 times
- 9 years agoHelpfull: Yes(0) No(0)
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