c********g
发帖数: 29 | 1 Your firm has classified orders as either large or small in dollar amount
and as either light or heavy in shipping weight. In the recent past, 29% of
orders have been large dollar amounts, 11% of orders have been heavy, and 5%
of orders have been large in dollar amounts and heavy in weight.
What is the probability that a randomly selected order is a large dollar
amount order give that it is a heavy order? | s*****0
发帖数: 357 | 2 简化你的问题：
P(L) = 0.29
P(H) = 0.11
P(L&H) = 0.05
求P(L|H) = ?
答：P(L|H) = P(L&H) / P(H) = 0.05/0.11
用venn diagram也可以解。
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5%
【在 c********g 的大作中提到】
: Your firm has classified orders as either large or small in dollar amount
: and as either light or heavy in shipping weight. In the recent past, 29% of
: orders have been large dollar amounts, 11% of orders have been heavy, and 5%
: of orders have been large in dollar amounts and heavy in weight.
: What is the probability that a randomly selected order is a large dollar
: amount order give that it is a heavy order?
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