Latest Bank Exam Aptitude Question SOLUTION: Q. A coin is tossed 5 times. what is the probability that head appears an odd number of times Option A)2/5 B)1/5 C)1/2 D)4/25

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(#M40031198) BANK EXAM Numerical Ability question probability Keep an EYE

Q. A coin is tossed 5 times. what is the probability that head appears an odd number of times

Option
A)2/5
B)1/5
C)1/2
D)4/25

Asked In Bank Exam pratibha Tiwari (10 years ago)

Unsolved Read Solution (4)

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mahima srivastava  (10 years ago)

for odd number of times either head can appear 1 time , 3 times or 5 times
so for 1 time there are 5c1 ways
for 3 times there are 5c3 ways
for 5 times there are 5c5 ways
total there are 5c1+5c3+5c5=16 ways
so there are 16 favorable outcomes
total outcomes= 2*2*2*2*2=32
probability= 16/32=1/2
so, option c

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akash  (10 years ago)

Two occurence are possible. HEAD or TAIL and coin is tossed 5 times which is odd number so head probability is 1/5

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aditya kumar  (9 years ago)

3/5-1/5=/5

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Sarau yadav  (7 years ago)

Two occurence are possible. HEAD or TAIL and coin is tossed 5 times which is odd number so head probability is 1/5

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