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Variance
A measure of dispersion the variance represents the average distance from any given observation in a series to the mean of that series in the units squared.
The χ 2 test is one of the most popular statistical inference procedures today. It is applicable to a very large number of problems in practice which can be summed up under th
what are the types of index numbers?
Mention the characteristics of Statistics. Explain any two applications of Statistics.
uses in marketing
We start reading and display the data: library (UsingR) data(galileo) g2=galileo$init.h-500 gl=galileo$h.d par(bg='cornsilk') plot(gl,g2,pch=20,col="red",cex=2,yl
It is known that the average height of a man residing in the Canada is 174 cm and the standard deviation is 8 cm. Assume the heights are normally distributed. To test the hypothesi
A probability distribution is partially given in the following table with the additional information that the even values of X are equally likely. Determine the missing entries in
The mean number of hours of flying time for pilots at Continental Airlines is 49 hours per month (The Wall Street Journal, February 25, 2003). Assume that this mean was based on ac
You are working for the management of ESK Jewellery as a marketing consultant. The main business of ESK Jewellery is the retailing of diamond jewellery. They opened their first sho
What are the advantages and disadvantages of index numbers
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