lan ɛ goes to 0 asn Problems Ture men and 5 women are ranked according to their scores on an examination. Assume that no two scores are alike and all 10! possible rankings are equally likely. Let X denote the highest ranking achieved by a woman (for instance, X = 2 if che top-ranked person was male and the next-ranked person was female). Find %3D P{X = i}, i = 1, 2, 3, . . . , 8, 9, 10. Y Let X represent the difference between the number of heads and the number of ils obtained when a coin is tossed n times. What are the possible values of X? %3D %3D In Problem 2, if the coin is assumed fair, for n = 3, what are the probabilities associated with the values that X can take on? KThe distribution function of the random variable X is given 0 ÷}? (c) What is P{2 < X < 4}? (d) What is P{X < 3}? (e) What is P{X = 1}? %3D 5. Suppose the random variable X has probability density function if 0

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Chapter1: Combinatorial Analysis
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Q. 1

lan ɛ goes to 0 asn
Problems
Ture men and 5 women are ranked according to their scores on an examination.
Assume that no two scores are alike and all 10! possible rankings are equally likely.
Let X denote the highest ranking achieved by a woman (for instance, X = 2 if
che top-ranked person was male and the next-ranked person was female). Find
%3D
P{X = i}, i = 1, 2, 3, . . . , 8, 9, 10.
Y Let X represent the difference between the number of heads and the number of
ils obtained when a coin is tossed n times. What are the possible values of X?
%3D
%3D
In Problem 2, if the coin is assumed fair, for n =
3, what are the probabilities
associated with the values that X can take on?
KThe distribution function of the random variable X is given
0 <x < 1
F(x) =
1<x < 2
11
2 <x < 3
1 3<*
(a) Plot this distribution function.
(b) What is P{X > ÷}?
(c) What is P{2 < X < 4}?
(d) What is P{X < 3}?
(e) What is P{X = 1}?
%3D
5. Suppose the random variable X has probability density function
if 0 <x< 1
Transcribed Image Text:lan ɛ goes to 0 asn Problems Ture men and 5 women are ranked according to their scores on an examination. Assume that no two scores are alike and all 10! possible rankings are equally likely. Let X denote the highest ranking achieved by a woman (for instance, X = 2 if che top-ranked person was male and the next-ranked person was female). Find %3D P{X = i}, i = 1, 2, 3, . . . , 8, 9, 10. Y Let X represent the difference between the number of heads and the number of ils obtained when a coin is tossed n times. What are the possible values of X? %3D %3D In Problem 2, if the coin is assumed fair, for n = 3, what are the probabilities associated with the values that X can take on? KThe distribution function of the random variable X is given 0 <x < 1 F(x) = 1<x < 2 11 2 <x < 3 1 3<* (a) Plot this distribution function. (b) What is P{X > ÷}? (c) What is P{2 < X < 4}? (d) What is P{X < 3}? (e) What is P{X = 1}? %3D 5. Suppose the random variable X has probability density function if 0 <x< 1
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