In the name of ALLAH, the most beneficient, the most merciful

Statistics and Probability (STA301)

Question (select most suitable option)

  An automobile is running, during the first 60 Km, at the rate of 10 Km/hr. During the second 60 Km at the rate of 30 Km/hr, while during the third 60 Km, its speed was 40 Km/hr. What method is more appropriate to calculate the average speed?
Median
Arithematic mean
Harmonic mean
Geometric mean