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Worker-population ratio is an indicator which is used for analysing the employment situation in the country. This ratio is useful in knowing the proportion of population that is actively contributing to the production of goods and services of a country. If the ratio is higher, it means that the engagement of people is greater; if the ratio for a country is medium, or low, it means that a very high proportion of its population is not involved directly in economic activities.
The probability of getting 9 cards of the same suit in one hand at a game of bridge is
The null hypothesis in ANOVA one-way classification, the study of the variances due to k different sources, is:
Which of the following options is correct when data is classified on the basis of attributes?
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...
The median of the following observations 10, 11, 9, 12, 10,10, 12, 10, 9,11 is:
With reference to index numbers, which of the following statements is true?
From standard pack of 52 cards, 3 cards are drawn at random without replacement. The probability of drawing a king, a queen and a jack in order is
For the variables X and Y, we collect 4 observations with ∑ X = 10,∑ Y = 14,∑ X2 = 30,∑ Y2 = 54,∑ XY = 31 The regressio...