The value of ? upto 50 decimal places is given below:
3.14159265358979323846264338327950288419716939937510
i) Make a frequency distribution of the digits from 0 to 9 after the decimal point.
ii) What are the most and the least frequently occurring digits?

i) By the observation of the digits after decimal point, the required table can be constructed as follows.

Digit	Number of times (frequency)
0	2
1	5
2	5
3	8
4	4
5	5
6	4
7	4
8	5
9	8
Total	50

ii) It can observed from the table that the least frequency is 2 of digit 0, and the maximum frequency is 8 of digit 3 and 9 .

Therefore, the most frequently occurring digits are 3 and 9 and the least frequency occurring digit is 0.