10. If a student is chosen at random from the group, what is the probability that the choice will contain more than 10 characters and a digit sum greater than 20?
10. If a student is chosen at random from the group, what is the probability that the choice will contain more than 10 characters and a digit sum greater than 20?
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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Solve for number 10 only please. 9 has already been solved.
Transcribed Image Text:Use the information to complete problems 9 and 10.
The table below lists the first name and date of birth for five students. The information
is presented in letters (for the names) and digits (for the birth dates). The total
characters for any given student is made up of both letters and digits in their data. The
characters of the names are not case sensitive. For example, Trent's characters are t, r,
e, n, t, 8, 1, 2, 9, and 7.
Trent
Ramiro
Mara
Pam
Fina
8-12-97
6-15-98
10-9-98
2-12-98
7-15-97
9. If a student is chosen at random from the group, what is the probability that the choice will
contain a repeated letter or a repeated digit?
10. If a student is chosen at random from the group, what is the probability that the choice will
contain more than 10 characters and a digit sum greater than 20?
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