To find the average speed of a journey, which is the appropriate measure of central tendency?
سفر کی اوسط رفتار معلوم کرنے کے لیے، مرکزی رجحان کا مناسب پیمانہ کون سا ہے؟
- Mean
- Geometric mean
- Harmonic Mean
- Weighted Mean
Explanation
The harmonic mean is the appropriate measure of central tendency to use when calculating the average speed of a journey.
This is because speed is a rate (distance per unit time), and the harmonic mean is used to average rates.
The formula for harmonic mean is: H = n / (∑(1/x))
where H is the harmonic mean, n is the number of values, and x is each value.
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