Question

1. The company has agreed on an 8 character password format, comprised of upper case letters , lower case letters, and digits (0-9). Find the number of passwords possible where the first two characters have to be upper case letters, the next 5 can be lower case letters or digits , and the last character has to be an upper case letter. Here are the restrictions:

a. Repetitions are allowed

b. Repetitions are not allowed

2. 30 people were asked what department stores they shop in. 11 shop at Macy’s (M), 8 shop at Kohl’s (K), 7 shop at Penney’s (P). 5 shop at Penney’s and Macy’s. 4 shop at Kohl’s and Macy’s. 3 shop at Kohl’s and Penney’s. 2 shop at all three of the department stores.

a. Create a Venn diagram with 8 disjoint regions. Put the data in the correct region.

b. How many respondents do not shop at any of these 3 stores?

c. How many shop at only one of the 3 stores?

Answer #1

The company has agreed on an 8 character password format,
comprised of upper case letters , lower case letters, and digits
(0-9). Find the number of passwords possible where the first 2
characters have to be upper case letters, the next 5 can be lower
case letters or digits , and the last character has to be an upper
case letter. Here are the restrictions:
a. Repetitions are allowed
b. Repetitions are not allowed

1) Assume that a password can contain upper and lower-case
letters (26), digits, and special characters from the set { !, #,
$, %, &, * }. Furthermore, each password must start with a
letter and must contain at least one digit and one special
character. How many different six-character passwords can be formed
according to this specification?

Determine the number of passwords comprised of 3 upper case, 3
lower case letters, 4 digits, and 2 special characters (these
include #$&*()!?^[], so 11 in total)

A computer password consists of: • letters {a, A, 6, B,
...,2,Z}, • digits {0, 1,...,9), or = 16 • special characters
{!,@,#,$,%}. In addition, a password must • contain at least one
upper case letter, • contain at least one special character. How
many passwords of length 8 are possible?

DISCRETE MATH.
If passwords contain letters(lower and upper case), numbers
(0-9) and can use these special characters(!,@,#,$,%)
how many 8 character long passwords are possible?
One character has to be an uppercase and another one has to be a
special character.

A password must consist of a minimum of 8 letters (not case
sensitive) and a maximum of 10. If the policy prohibits repeated
characters, how many passwords are possible? (Leave your answer in
terms of factorials).

A system administration of our school has instituted the
following rules when it comes to the creation of our school’s email
password: (i) A password must be exactly 8 characters long;(ii) A
password must begin with an uppercase letter; (iii) The last
character of a password must be a digit. The character set from
which a password can be created includes numerals (digits), upper
and lower case letters. Determine the maximum number of passwords
available.

Delta airlines case study
Global strategy. Describe the current global
strategy and provide evidence about how the firms resources
incompetencies support the given pressures regarding costs and
local responsiveness. Describe entry modes have they usually used,
and whether they are appropriate for the given strategy. Any key
issues in their global strategy?
casestudy:
Atlanta, June 17, 2014. Sea of Delta employees and their
families swarmed between food trucks, amusement park booths, and
entertainment venues that were scattered throughout what would...

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