7) A password is to be made up of five characters where the first character isof the alphabet (not case sensitive) and the next four characters can be any digit from 0 to9 (digits can be repeated)What is the probability that you will guess the correct password on the second attempt?anyletter8) About half of Americans born around 1920 had blue eyes. By mid-century thatnumber dropped to a third. Immigration patterns, intermarriage, and genetics all play apart in the decline. While the drop-off has been happening for a century, the plunge in thepast few decades has taken place at a remarkably high rate. Today only about one 1 ofevery 6 Americans has blue eyes.i) What is the probability that two unrelated people standing in line at WAWA willboth have blue eyes?ii) What is the probability that in a group of five unrelated people exactly two haveblue eyes?9) In the game "rock, paper, scissor" two people extend a hand using one of the three choices.Paper beats rock, rock beats scissor, and scissor beats paper.What is the probability of a tie (both people using the same choice) ?

Since you have asked multiple questions, we will solve the first question for you. If you want any…

7) A password is to be made up of five characters where the first character is any letter of the alphabet (not case sensitive) and the next four characters can be any digit from 0 to 9 (digits can be repeated) What is the probability that you will guess the correct password on the second attempt?

7) A password is to be made up of five characters where the first character is any letter of the alphabet (not case sensitive) and the next four characters can be any digit from 0 to 9 (digits can be repeated) What is the probability that you will guess the correct password on the second attempt?

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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Concept explainers

Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.

Question

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7) A password is to be made up of five characters where the first character is
of the alphabet (not case sensitive) and the next four characters can be any digit from 0 to
9 (digits can be repeated)
What is the probability that you will guess the correct password on the second attempt?
any
letter
8) About half of Americans born around 1920 had blue eyes. By mid-century that
number dropped to a third. Immigration patterns, intermarriage, and genetics all play a
part in the decline. While the drop-off has been happening for a century, the plunge in the
past few decades has taken place at a remarkably high rate. Today only about one 1 of
every 6 Americans has blue eyes.
i) What is the probability that two unrelated people standing in line at WAWA will
both have blue eyes?
ii) What is the probability that in a group of five unrelated people exactly two have
blue eyes?
9) In the game "rock, paper, scissor" two people extend a hand using one of the three choices.
Paper beats rock, rock beats scissor, and scissor beats paper.
What is the probability of a tie (both people using the same choice) ?

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