The Fundamental Counting Principle

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This precalculus video tutorial provides a basic introduction into the fundamental counting principle. Examples include the problem with how many different outfits one can wear, the multiple choice test, and telephone numbers.

Permutations and Combinations:

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My Algebra teacher sucks at actually explaining, so you have been a godsend, Mr. Organic Chemistry

mallomia

what happens if i call those phone numbers

dqggers_

OrgoChem tutor, I have always placed my trust within your hands to explain several concepts I struggled to comprehend, and you never disappointed. Thank you so much ❤

friedavi

Just a note, for the tree diagram you can also count the last row for the number of possibilities instead of counting each and every possibility.

Aneeqatblw

Probability that Mike's outfit looks goofy: 100%

samueljamieson

Best YouTube channel and great teacher forever👍🫡🥰

maza

Thank you very much sir. For all what you are doing❤❤❤.

Am your student since 2017.

Thank you very much❤

AFCOE

Thank you for making my life easier, sir.

pu_chan

Thank you so much for simplifying this!

calebchastain

Than you man you help me to much already.

pewmandelt

"Weird outfit, but for the sake of this problem..." lol math questions are so questionable sometimes

funsies

I love the way he teaches I like your video bro

Kingdom_Of_Aquila

What a great online tea'c. Makes understandable.

gentlejay

Based on how the second question is asked, shouldn't it only use the probability of that one single-starting area code of its 8 possible outcomes instead of including the first digit within the middle/second column of a telephone number?

I'm not sure if I'm reading the question correctly or not.

properlek

I love you man. That's all I can say❤❤😊😊

Naw-PhawMoo

for the second question, can we use the permutation to get the answer? Always confused about the difference and when should I use these ways

yuyang

Advanced set theory proofs iwish to get this channel

abdirahmanjamac

For the thrid problem the answer is 100.

Since this is a multiple choice quiz, we have 25 ways to answer a question
(let's say our options are A, B, C, D and E):

A B C D E
AB BA CA DA EA
ABC BAC CAB DAB EAB
ABCD BACD CABD DABC EABC
ABCDE BACDE CABDE DABCE EABCD

Then, we multiply number of options to anwser one question by 4 because we have 4 questions: 25*4=100

vitaly

in the 2nd question it is said that 3-digit area code can not begin with 0 or 1, so it means 7-digit local can begin with them. However, you did not use 0 and 1 for 7-digit. Please correct me if I am mistaken. Thanks in advance for everything.

VV-temz

Nooo i can't understand this topic😢😢

Linatube

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