A special type of password consists of four different letters of the alphabet, where each letter is used only once. How many different possible passwords are there?
Added by Ivan D.
Close
Step 1
Step 1: There are 26 possibilities for the first letter. Show more…
Show all steps
Your feedback will help us improve your experience
Shaiju T and 70 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A special type of password consists of 3 different letters of the alphabet, and the two different numbers, where each letter and each number is used only once. How many different possible passwords are there?
Tim T.
A computer password consists of four characters. The characters can be one of the 26 letters of the alphabet. Each character may be used more than once. How many different passwords are possible?
Ahmet Y.
Solve by the method of your choice. How many different four-letter passwords can be formed from the letters A, B, C, D, E, F, and G if no repetition of letters is allowed?
Sequences, Induction, and Probability
Counting Principles, Permutations, and Combinations
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD