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Numerical Ability
Probability
a speaks truth 80% B-60% probabilty a n b tell truth at same time
Read Solution (Total 10)
-
- (80/100)*(60/100)=0.48 or 48%
- 11 years agoHelpfull: Yes(13) No(3)
- a=80% b=60%
a and b
A intersection B
80/100 x 60/100
.8 x .6
.48 --> 48 % - 11 years agoHelpfull: Yes(7) No(0)
- probability that a speaks truth is 80/100=0.8
probability that b speaks truth is 60/100=0.6
both the probabilities are independent so the probability that a n b speaks truth at hte same time is 0.8*0.6=0.48 - 11 years agoHelpfull: Yes(3) No(0)
- probabilty A speeks truth 80/100
probabilty B speeks truth 60/100
req probabilty=(80/100)*(60/100)=0.48 - 11 years agoHelpfull: Yes(2) No(0)
- probability a speak truth = 0.8
probability b speak truth = 0.6
probability that both a and b speak truth = 0.8 * 0.6 =0.48 - 11 years agoHelpfull: Yes(2) No(0)
- 0.92
p(aUb)=p(a)+p(b)-p(a^b)
=p(a)+p(b)-p(a).p(b)
=0.8+0.6-0.8*0.6
=0.92 - 11 years agoHelpfull: Yes(1) No(8)
- 0.8*0.4=0.48
- 10 years agoHelpfull: Yes(1) No(0)
- 80% for a
60% for b
a&B= (1/2)*(80%+60%) - 11 years agoHelpfull: Yes(0) No(4)
- p(AUB)=p(A)+p(B)-p(A^B)
=p(A)+p(B)-p(A).p(B)
=0.8+0.6-0.8*0.6
=0.92
- 11 years agoHelpfull: Yes(0) No(6)
- (2/5)*(2/5)+(3/5)*(3/5)=0.52 answer.
- 11 years agoHelpfull: Yes(0) No(5)
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