A computer password consists of six characters.a. How many different passwords are possible if each character may be any lowercase letter ordigit?b. How many different passwords are possible if each character may be any lowercase letter ordigit, and at least one character must be a digit?c. A computer system requires that passwords contain at least one digit. If seven charactersare generated at random, and each is equally likely to be any of the 26 letters or 10 digits,what is the probability that a valid password will be generated?

Permutation: A permutation of a set is defined as an arrangement of its members into a sequence or…

Answered: A computer password consists of six…

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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Similar questions

A computer program generates random numbers. The numbers have 3 digits which cannot be repeated, and they must be divisible by 5. How many unique numbers can the program generate?
. Solve for the following:a. What is the probability of getting a blue or white ball if there are 50 balls in total, where 23are red, 11 are black, and the number of blue and white balls are equal?b. What is the probability of not drawing a heart or face or red card?c. How many distinct permutations can be derived from the word BOOKKEEPERS?d. How many ways can you create a password with 3 non-repeating letters, 5 numbers (whichcan be repeated) and 3 non-repeating symbols. Assuming there are 40 symbols available to choosefrom.
If 4 marbles are picked randomly from a jar containing 8 red marbles and 7 blue marbles, in how many possible ways can at least 2 of the marbles picked are red? O 1176 1 050 1 638 O 1 568
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A. The Computer Geek Org has 23 members: 3 freshmen, 5 sophomore, 7 junior, and 8 senior students. If you are going to pick a certain number of name/s at random, at least how many should you pick to make sure that you have 2 students with the same year level? Use the pigeonhole principle and state your conclusion.
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Jessie is creating a 10-character password that consists ofnumbers and letters (Each digit will be considered a character). He isnot allowed to have repeated characters, but lower case letters andupper-case letters are allowed (ex. “a” and “A” will be considereddifferent characters).a. How many different passwords can he create if “a” and “A” mustbe a part of the password. b. How many different passwords can he create if there must beat least 8 digits in the password?
A car insurance company has determined that 9% of all drivers were involved in a car accident last year. Among the 10 drivers living on one particular street, 3 were involved in a car accident last year. If 10 drivers are randomly selected, what is the probability of getting 3 or more who were involved in a car accident last year? O a. O b. O C. O d. 0.4435 0.9548 0.0541 0.0452

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