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Zip Codes How many 5-digit zip codes are possible if digits can be repeated? If there cannot be repetitions?

100,000; 30,240

Intro Stats / AP Statistics

Chapter 4

Probability and Counting Rules

Section 4

Counting Rules

Sampling and Data

Probability Topics

Letitia T.

January 7, 2021

how many 5 digit codes are possible if digital can be repeated

Saw D.

March 20, 2022

What is 5 code?

Temple University

University of St. Thomas

Boston College

Lectures

0:00

01:19

Postal Zip Codes The U.S. …

00:53

01:26

A U.S. postal zip code is …

00:48

How many ways are there to…

00:52

A zip-plus- 4 postal code …

00:47

Determine the number of po…

01:00

How many different 5-digit…

00:42

How many three-digit numbe…

How many four-digit numbe…

How many five-digit numbe…

00:41

Four-digit Numbers How man…

00:46

Five-digit Numbers How man…

01:08

How many 5 -digit numbers …

02:19

Forming Numbers How many t…

00:44

A telephone messaging syst…

02:41

Forming Codes How many dif…

01:17

How many code symbols can …

01:06

How many different license…

01:47

How many 3 -digit numbers …

01:24

How many different four-le…

here we had to find out far dessert Zip court so we can write it as five spaces for all five visits on we. How 10 desserts still fill all these five spaces if visit sought repeating. So we have 10 ways to feel in first space again in second space. Also, we can feel in 10 vis in tour space. All silicon fill in envious same V. We have 10 ways to fill in fourth space. Also on even in fifth less also weaken fill in 10 days so we can write it as turned to deport off fight that is 100 tall, isn't we? Help 100,000 ways to fill all the fire Desert zip courts you know Sicking one. Secondly, that is, if visits are not repeating how many ways we how toe ah find or does it ports again itself Far Desert Zip Corso. We have five spaces to fill their desserts. InfoSpace. We can fill in NV's in second space only. We help nine ways. It's in minus one. That this 10 minus one is nine years because we have already filled one visit first space at again and minus two is eight on third space beheld only seven days on in for fifth place. Only six ways to fill visits. So we have to multiply, then into nine in tow aid into seven in tow. Six. That is party posing do foot.

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