The following diagram shows the keypad for an automatic teller machine. As you can see, the same sequence of keys represents a variety of different PINs. For instance, 2133, AZDE, and BQ3F are all keyed in exactly the same way.The following diagram shows the keypad for an automatic teller machine. As you can see, the same sequence of keys represents a variety of different PINs. For instance, 2133, AZDE, and BQ3F are all keyed in exactly the same way. b.How many different PINs are represented by the same sequence of keys as 5031? c. How many different numeric sequences on the machine contain no repeated digit?

The following diagram shows the keypad for an automatic teller machine. As you can see, the same sequence of keys represents a variety of different PINs. For instance, 2133, AZDE, and BQ3F are all keyed in exactly the same way.The following diagram shows the keypad for an automatic teller machine. As you can see, the same sequence of keys represents a variety of different PINs. For instance, 2133, AZDE, and BQ3F are all keyed in exactly the same way. b.How many different PINs are represented by the same sequence of keys as 5031? c. How many different numeric sequences on the machine contain no repeated digit?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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b.How many different PINs are represented by the same sequence of keys as 5031?

c. How many different numeric sequences on the machine contain no repeated digit?

1
3
QZ
АВС
DEF
4
5
GHI
JKL
MNO
7
8
9.
PRS
TUV
WXY
a. How many different PINS are represented by
the same sequence of keys as 2133?
b. How many different PINS are represented by
the same sequence of keys as 5031?
c. How many different numeric sequences on the
machine contain no repeated digit?

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