Question
There are N cards that are labeled {1,2,3,...,N}. From Left to right, those cards have been placed at positions labeled from 1 to N. A
There are N cards that are labeled {1,2,3,...,N}. From Left to right, those cards have been placed at positions labeled from 1 to N. A card placed correctly if its number is less than the number of its position. Assume the random variable Y denotes the number of cards that are placed correctly. Find E(Y).
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Advanced Engineering Mathematics
Authors: ERWIN KREYSZIG
9th Edition
0471488852, 978-0471488859
