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Introduction To Mathematical Modelling

Question
CBSEENMA9004017

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:

Table

Digit

0

1

2

3

4

5

6

7

8

9

Frequency

22

26

22

22

20

10

14

28

16

20

 
 

Without looking at the page, the pencil is placed on one of these numbers, i.e., the number is chosen at random. What is the probability that the digit in its unit place is 6?

Solution

Solution not  provided.
Ans.   0.07