A lottery. Played 50 tickets for 1 ruble
- Price in currencies:
- 0.6 $ · 50 RUB · 0.53 €
- Category:
- Tests
- Item:
- 8.docx (23.58 KB)
- Uploaded:
- 09.09.2013 13:09:26
- Sales:
- 2
- Refunds:
- 0
- Seller:
- tmc.do · about the seller and their products
DESCRIPTION
A lottery. Played 50 tickets for 1 ruble
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.
Additional information:
Solution of the problem
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