The arithmetic mean of the following data is _________.
23, 17,20,19,21
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 20
Given that
23, 17, 20, 19, 21
Arithmetic Mean = Sum of the numbers/Total number of observations
= (23 + 17 + 20 + 19 + 21)/5 = 100/5 = 20