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Product description
A lottery. Played 50 tickets for 1 ruble. It is known that among the 30 winning tickets 1 rub., 2 - 10 rubles. Purchased 2 tickets. Calculate the expectation of net income.
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- Content type File
- Content description 23,58 kB
- Added to the site 09.09.2013
Additional description
Solution of the problem
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A lottery. Played 50 tickets for 1 ruble
0 000 X
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