Wipro
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Numerical Ability
Probability
in an objective exam which has 2 answer options each for all the 20 questions.what is the probability that sushant answers all the questions correctly?
Read Solution (Total 5)
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- 1/2048. EACH QUESTION HAS A PROBABILITY OF 1/2 FOR THE ANSWER TO CORRECT. SO FOR 20 QUESTIONS IT IS 1/(2^20)
- 8 years agoHelpfull: Yes(9) No(5)
- For each question the probability is 1/2. Then for 20 question it will be 10
- 8 years agoHelpfull: Yes(8) No(18)
- prob = (1/2)^20
- 8 years agoHelpfull: Yes(8) No(3)
- dear SINDHURA KANIKARAM, answer will be 1/(2^20) but this is not equal to 1/2048. 2^11=2048,, 2^20 will be much more than that.
- 8 years agoHelpfull: Yes(1) No(0)
- favourable event=2c2*20
total outcome=4c2*20
p=fe/to
=>1/6 - 8 years agoHelpfull: Yes(0) No(6)
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