Q15. A machine that inserts letters into envelopes goes haywire and inserts letters randomly into envelopes. What is the probability that in a group of 100 letters a) no letter is put into the correct envelope? b) exactly one letter is put into the correct envelope? c) exactly 98 letters are put into the correct envelopes? d) exactly 99 letters are put into the correct envelopes? e) all letters are put into the correct envelopes?
Q15. A machine that inserts letters into envelopes goes haywire and inserts letters randomly into envelopes. What is the probability that in a group of 100 letters a) no letter is put into the correct envelope? b) exactly one letter is put into the correct envelope? c) exactly 98 letters are put into the correct envelopes? d) exactly 99 letters are put into the correct envelopes? e) all letters are put into the correct envelopes?
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter2: The Integers
Section2.7: Introduction To Coding Theory (optional)
Problem 7E
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