Correct Answer - Option 3 : 38
Given:
The average of 6 observations = 24
Five of its observations = 16, 22, 18, 26, 24
Concept used:
Average = (Sum of observations)/(Number of observations)
Calculations:
The total of 6 observations = 24 × 6 = 144
Total of 5 observations = 16 + 22 + 18 + 26 + 24 = 106
The sixth observation = 144 – 106 = 38
∴ The sixth observation is 38.