Question

Find the mode of the digits used in writing the natural numbers from 11 to 30.

• A. 3
• B. 2
• C. 1
• D. 0

Answer 1

The correct option is B 2

Mode is the most frequent occuring observation in the dataset.

Natural numbers are 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30

Digit 1 occurs 11 times.
Digit 2 occurs 12 times.
Digit 3 occurs 3 times.
Digit 4 occurs 2 times.
Digit 5 occurs 2 times.
Digit 6 occurs 2 times.
Digit 7 occurs 2 times.
Digit 8 occurs 2 times.
Digit 9 occurs 2 times.
​​​​​​​Digit 0 occurs 2 times.

2 cccurs most of the time , so it is the mode.