On one page of a telephone directory, there were
200 telephone numbers. The frequency distribution of their unit place digit
(for example, in the number 25828573, the unit place digit is 3) is given in
the table below:
Digit 0 1 2 3 4 5 6 7 8 9
Frequency 22 26 22 22 20 10 14 28 16 20
A number is chosen at random, find the probability
that the digit at its unit’s place is:
(i)
6 (ii) a non-zero multiple of 3
(iii)
a non-zero
even number (iv) an odd number.
