Complete the number analogy
4 : 0.25 : : 5 :
Sum of the deviations of a variable from its mean is always
A watt's governor can work satisfactorily at speeds from
Variance of (3,5,8,4) is ____
The earth intercepts approximately one billionth of the power radiated by the sun. If the surface temperature of the sun were to drop by a factor of 2, the average radiant energy incident on earth per second would reduce by factor of
By adding two successive class limits and dividing sum by 2, we obtained
Mean of squared deviations of some observations from their arithmetic mean is called
Measures that are used to determine degree or extent of variation in a data set are called
Statistically, spread or scatterness of observations in a data is called
Price at which a particular item is purchased by a shopkeeper is known as
Positive square root of mean of squared deviations of some observations from their arithmetic mean is called
Statement:Central Bank, which is the largest bank in the country, has decided to reduce its workforce by 30% so that its banks may work efficiently.
Assumptions:
I. The bank can perform all its activities after the reduction in workforce.
II. The surplus employees may be asked to adopt early retirement scheme before leaving the bank
A man sold 20 articles for Rs. 60 and gained 20%. How many articles did he buy for Rs.60