Question
Two data sets of sizes 6 and 9 have standard deviation
3 and 4, respectively, and arithmetic means 4 and 4, respectively. The standard deviation of combined data set of size 15 is:Solution
The correct answer is D
More Welfare Economics Questions
Which of the following countries is the centre of origin of rice?
A year in which rainfall of a particular region is deficient by more than _______is known as drought year.
The term Genetic erosion can be defined as::
Sucrose consists of:
Pick out the wrong statement.
Chlorophyll is formed from
Which of the following is responsible for the anthropogenic climate change phenomenon?
Varalaxmi is a hybrid developed in
10 acres is equal to how many hectares?
Which of the following is an atmospheric condition characterized by descending air, clear skies, and dry weather, commonly associated with anticyclones?
