Question

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
TORIAL
numbers. The frequency distribution of
TUTO
their units digit is given below
Unit digit
Frequency
10
1
20
2gtu 2
15
3
n10
20
ORIAL
20
10
15
15
15
One of the numbers is chosen at random
from the page.
() Probability that the unit digit of the
chosen number is less than 3?
TORIAL
TORIAL
(a) b () 10 a10
10
10
10

Answer 1

yahudi idea ashich aplya amod above which slots alloys allocated aslya assoc assoc