Capgemini
Company
Numerical Ability
Probability
An experiment has three possible outcomes, l, J, and K. The probabilities of the outcomes are 0.25, 0.35, and 0.40, respectively. If the experiment is to be performed twice and the successive outcomes are independent, what is the probability that K will not be an outcome either time?
option
(A) 0.36
(B) 0.40
(C) 0.60
(D) 0.64
(E) 0.80
Read Solution (Total 5)
-
- cases are I & J, J & I, I & I and J & J. ans = (.25*.35*2) + (.25^2) + (.35^2) = .36
- 10 years agoHelpfull: Yes(51) No(0)
- probability that K will not be outcome first time=1 - 0.4 = 0.6
probability that K will not be outcome second time =1 - 0.4 = 0.6
probability that k will not be outcome either time = first*second time = 0.6*0.6=0.36
- 9 years agoHelpfull: Yes(7) No(0)
- PROBABILITY OF EACH EXPT SHOULD DONE TWICE EXCEPT K=2*.35*0.25+0.25^2+0.35^2=0.36
- 10 years agoHelpfull: Yes(5) No(0)
- probability that k will not be outcome either time=1-(2*0.25*0.40+2*0.35*0.40+0.40*0.40)=0.36
- 10 years agoHelpfull: Yes(3) No(0)
- I THINK
0.25+0.35=0.60
answer is C. - 9 years agoHelpfull: Yes(0) No(5)
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