2025 · Q92
To find the average ratio like price/unit, work done/hour, km/hour under certain conditions, the suitable measure of central tendency is:
Elementary MathematicsStatistics
- AArithmetic mean
- BGeometric mean
- CHarmonic mean
- DMedian
Explanation
Averages of rates and ratios (km per hour, price per unit) need the harmonic mean. Its reciprocal structure matches 'per unit' quantities. The arithmetic mean would overweight large rates and give a wrong average speed or price.