Question

ark,
17. A telephone directory, commonly called a
telephone book, telephone address book,
phone book or the white pages, is a listing
of telephone subscribers in a geographical
area. Rahul a student of Class IX has an
telephone directory. On one page of a
telephone directory, there are 150 phone
numbers. The frequency distribution of
their units digit is given below
Unit digit Frequency
0
1
2
3
10
20
15
4
5
6
10
20
20
10
15
15
15
7
8
One of the numbers is chosen at random
from the page.
() Probability that the unit digit of the
chosen number is less than 3?
3
7
(b)
10
10
1
10
9
10​

Answer 1

Answer:

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