Q. 11

On one page of a directory, there are 160 telephone numbers. The frequency distribution of the unit place digit is given as under:


From this page, one of the numbers is chosen at random. What is the probability that the unit place digit in the chosen number is 6?
A.

B.

C.

D.

Answer :

Total number of telephone numbers on the page: 160


Number of telephone numbers which have 6 in units place is: 15


Probability P() =


Probability of getting 6 in unit place of a telephone number.


P(6) = = =

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