Two data set of size 9 and 6 have standard deviation 3 and 4 respectively and arithmetic means 3 and 3 respectively. The standard deviation of combined data set of size 15 is
The correct answer is A
The degree of responsiveness between output and input is measured by:
For raising sugarcane and potato together, it is necessary to plant cane at the distance of:
Match list I with list II
The breeding method useful in purification of existing varieties is
Among the various countries that import Indian guar gum, which country holds the distinction of being the largest importer?
Who coined the term microbial control?
Organic acids developed from organic matter decomposition act as chelating agent may be
Which of the following tree serves as raw material for the manufacture of pencil?
With how many states does the boundary of Haryana touch?
In the context of greenhouse construction, what does FRP stand for?