Question
Thermal efficiency of diesel engine
isSolution
Thermal efficiency is the ratio of net work output to the heat input and it is 25 to 32 % for petrol engine and 32 to 38 % for diesel engine.
To estimate the average work experience of MBA students at a management institute, five students are selected at random from each type of background, s...
The mean and median of the distribution are 10 and 11 respectively, then the mode equals to
Using the method of semi-averages, secular trend is measured when:
The limits of multiple correlation coefficient R1.23 are:
Completely Randomized Design provides maximum number of degree of freedom for the:
If mean and mode of the distribution is 32 and 21, then the distribution:
The purchasing power of money is equal to:
If r and R denote correlation and multiple correlation coefficient for the data set for X1, X2 and X3 . Which option is correct?
If price-quantity are related for base year (0) and current year (1) are
∑ : p0q0 = 260,∑ : p1q0 = 395,∑ : p0q1 = 264,∑ : p1q1 = 422, t...
