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An urn contains 4 tickets having the nos...

An urn contains 4 tickets having the nos. 112, 121, 211, 222. A ticket is drawn at random. The even `A_i` = the event that the `i^(th)` digit is 1 (I = 1 to 3). Shwo that the events `A_1`, `A_2`, `A_3` are pair wise independent but not mutually independent.

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UNITED BOOK HOUSE-Techno India Group Academia South Kolkata, Question Paper -Exercise
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  9. State and prove Cauchy-Schwartz inequality.

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  10. Show that if events A and B are independent, then so are A^c and B^c.

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  11. An urn contains 4 tickets having the nos. 112, 121, 211, 222. A ticket...

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  12. If a fair coin is tossed thrice find the probability that there are ...

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  13. If a variable be such that np observations are all equal to 1 and the ...

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  14. Prove that Mean deviation is minimum about its median.

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  15. Find the standard Deviation of 6 and 8.

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  16. The lower and the upper quartiles of a disiribution are 14.6 and 25.2 ...

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  17. The first of two urns contains 3 white and 2 black balls and 2 red bal...

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