A man has three bags. There are 4 marbles of different colours in first bag, 5 marbles of different colours in second bag and 3 marbles of different colours in third bag. If two colours are such which are only in first and second bag and one colour is such which is in all the three bags, how many different colours are in all the three bags?

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#Question id: 23321

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Which one of the following research methods, have the similarity in nature when compared in relation to sample, control and validity of inferences?

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#Question id: 23322

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The propounded of the law of single variable is

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#Question id: 23323

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In correlation design of Ex Post Facto Research, we study

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#Question id: 23324

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According to Lindquist the types of experimental design are

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#Question id: 23325

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Case-study collects the data from the following sources

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#Question id: 23326

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The need of philosophical research method is desired in