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Solution. a) We will use S to mean having salad and C to mean having cheesecake
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a) We will use S to mean having salad and C to mean having cheesecake.
b) We want to find 
We could use the formula here, but it can be seen directly from the tree diagram that 
By the formula
=0.3
c) Here we want 
and in this situation it is easier to use the formula.
Дата публикования: 2014-11-03; Прочитано: 329 | Нарушение авторского права страницы | Мы поможем в написании вашей работы!
