# statistics

A computer password is required to be 7 characters long. How many passwords are possible if the password requires 2 letter(s) followed by 5 digits (numbers 0-9), where no repetition of any letter or digit is allowed?

1. 👍
2. 👎
3. 👁
1. Possible 2 letters: 26*25
possible 5 digits : 10*9*8*7*6

= ....

1. 👍
2. 👎

## Similar Questions

1. ### English

10. In "The Lottery," Jackson employs several stock characters, including a town leader, law-abiding citizens, and strong father figure. How does she use the stock characters instead of more complex characters to develop the theme

2. ### English

I am on my final exam and need to do the last two 16 point questions. Could someone help me out on the first one? Choose any two characters studied in Semester B, and compare them to one another. The characters that you choose may

3. ### math

A hacker is trying to guess someone's password. The hacker knows (somehow) that the password is 14 characters long, and that each character is either a lowercase letter, (a, b, c, etc), an uppercase letter (A, B, C, etc) or a

4. ### math

A car license plate consists of 6 characters. The first 3 characters are letters excluding I, O, Q and U. The last 3 characters are any of the numerals 0 to 9 inclusive. How many different license plates are possible? Please show

1. ### Algebra

Carmen is choosing a 3 -letter password from the letters A, B, C, and D. The password cannot have the same letter repeated in it. How many such passwords are possible?

2. ### Math

Vinay made a Password that consists of 3 digits. None of the digits are the same. How many possible passwords did Vinay choose from? Please explain how to solve.

3. ### math

Ahmad is choosing a password to access his teacherâ€™s web page. He must choose a capital letter and three nonrepeating digits from 0 through 9. The letter can be in any position in the password. Which shows part of the sample

4. ### Probability

A computer password is required to be 9 characters long. How many passwords are possible if the password requires 2 letter(s) followed by 7 digits (numbers 0-9), where no repetition of any letter or digit is allowed?

1. ### Math

Arabella's password consists of 1 letter followed by two digits. What is the probability of correctly guessing Arabella's password?

2. ### Financial Math

6 character computer password is made up of 4 numbers followed by 2 letters. How many different passwords are possible?

3. ### math

1. Arabella's password consists of one letter followed by 2 digits. What is the probability of correctly guessing arabella's password? 2. If the probability of an event happening is p, what is an algebraic expression that

4. ### statistic

. A computer password consists of thirteen characters. Replications are allowed.How many different passwords are possible if each character may be any lowercase letter or digit? Enter your answer in scientific notation with two