What is the probability that 3 customers waiting in a bank will be served in the sequence of their arrival at the bank

a

1/6

b

1/3

c

1/2

d

2/3

e

5/6

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Correct Option
a

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Discussions (7)

Horllanrewarju
4 years ago

What about this?
Three customers be represented by A B and C
The list of all possible events is

{ABC,
ACB,
BAC,
BCA,
CAB ,
CBA}
Probability of the sequence they arrive is only ABC which is 1 out of 6 in all possible outcome, which is 1/6

Myschool Kelly
10 years ago

Correction has been made. Thanks for your contributions.

xsopher
11 years ago

The probability is 1/3 x 1/2 x 1/1 = 1/6

Odeomu
1 year ago

pls can I be clarified on the correct answer, is it 1/6 or 1/3

professorkoko
11 years ago

The correct ans. Is B 1/3. How

{Prob that a customer is served first is 1 out of total which is 3} so it 1/3

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