A question paper contains 90 multiple choice questions. There are 4 alternative answers (A, B, C or out of which only one is correct. Mr X answers these questions randomly (i.e. without preparation). What is the probability that X gets a score of at least 10 marks?
A. 0.9997
B. 0.7894
C. 0
D. 0.001
Answer:A
A question paper contains 90 multiple choice questions. There are 4 alternative answers (A, B, C or out of which only one is correct. Mr X answers these questions randomly (i.e. without preparation). What is the probability that X gets a score of at least 10 marks?
A. 0.9997 B. 0.7894 C. 0 D. 0.001