aashu4uiit wrote:
What is the probability that it will rain tomorrow?
(1) The probability that it rains today is 40%.
(2) If it rains today, the probability that it will rain tomorrow will increase by 10%.
(1) The probability that it rains today is 40%.
Probability of rain today = \(\frac{40}{100}= \frac{2}{5}\) ; No rain today \(= \frac{3}{5}\)
NO INFORMATION ABOUT TOMORROW
INSUFFICIENT
(2) If it rains today, the probability that it will rain tomorrow will increase by 10%.
Probability of rain today = x ; Probability of rain tomorrow = x+10%
No information on today's chances of rain
INSUFFICIENT
MERGE BOTH
Probability that it rains today = \(\frac{2}{5}\)
If Rain today then Tomorrow's Rain probability = \(\frac{2}{5}+\)10% \(of \frac{2}{5}\)
If No rain today then Tomorrow's Rain probability = ??????? NO INFORMATION GIVEN
Can we calculate it NO WE CANNOT ; Today no rain = 3/5 thats all we know. How this corelates to tomorrow is not given anywhere in the question
INSUFFICIENT
ANSWER IS E
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