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Total distance = Length of train + Length of platform = 400 + 200 = 600 meters. Time = 36 seconds. Speed in m/s = Distance / Time = 600 / 36 = 100/6 m/s. Speed in km/h = 100/6 × 18/5 = 60 km/h. Correct option: B) 60 km/h
If the difference between the rank of the 4 observations are 2.5, 0.5, -1.5, -1.5, then Spearman's rank correlation coefficient equals to:
For two items, tea (1 kg) and sugar (1 kg), the prices in the year 2019 were ₹100 and ₹50, respectively, whereas the prices in the year 2020 were �...
Completely randomized design is based on the principles of _________ and randomization only.
If mean and median of the distribution are 12 and 21, then the distribution
For the frequency distribution of income (in lakh) of the employees in factory
Class 1.5-2.5 �...
For the cumulative distribution function
the upper quartile point is
If Laspeyres price index of a commodity is 208 and Passche's price index of the same commodity is 52, the value of Fisher index number will be:
For the distribution with unknown θ
We set the tes...
