Sunday

December 21, 2014

December 21, 2014

Posted by **Gianina HELP HELP** on Tuesday, December 18, 2012 at 1:15am.

a) How many codes are possible if there are no restrictions?

b) What is the probability of someone entering a code at random and gaining entry to building?

- Algebra -
**Steve**, Tuesday, December 18, 2012 at 9:52amthere are 10^5 * 52 unique codes

there are 130 valid ones for access

so, it should be clear what p(access) is for random entry. Not high.

- Algebra -
**Nina PLEASE ALGEBRA**, Tuesday, December 18, 2012 at 5:52pmThank you but I don't understand why is 52 in the first question ;and what is exactly the answer to the question b)

**Answer this Question**

**Related Questions**

C Programming - Write a program that prompts the user to enter a temperature, ...

math - If a bar code contains a letter followed by a digit from 1 to 9 followed ...

math - inventory puposes, a manufacturing company assigns a 3 charcter code to ...

math-probability - Employees at a company are given a three digit employee ...

math - Each user has a password 6 characters long where each character is an ...

math - please i need help with this...were studying probability...possible ...

Discrete Math - Each Student at a certain university is given a 6-digit code (...

math - Suppose a code consist of two letters followed by a digit. Find the ...

math - Suppose a code consist of two letters followed by a digit. Find the ...

probability - you are to set up a code of consisting of three letters (A to Z) ...