## Probability Explained!

This math video tutorial explains how to solve probability word problems using marbles as examples. It provides a basic review of calculating probability for independent events. It goes over the rules of compound events focusing on key expressions such as and/or. “And” is associated with multiplication while “or” is associated with addition. This video contains plenty of examples and practice problems of calculating probability with replacement and without replacement.

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### 27 Responses to “Probability Explained!”

1. The Gaming Dude says:

This video is more helpfull than 2 weeks of math lessons

2. Raine says:

How many diamond be selected from a standard deck of 52 cards?

3. Raine says:

How many three-digit numbers can be formed from the digits 0,2,5,6 and 8 if no digit can be used more than once? a. 48 b. 96 c.120 d.500

4. Raine says:

How many ways can 2 boys and 3 girls sit in a row, if the first and last seats are to be occupied by girls?

5. Raine says:

How many outcomes can have two head and one tail if three coins are tossed?

6. Christopher Carratala says:

I can’t be the only one stressing about the fact that the letters lined up to spell “RUGBY” without the U…right?

7. Amelita Loberanes says:

Your video really helped a lot…

8. SAHIR ROPER says:

I like when he use examples

9. sofi A says:

thank you sir.

10. Jerry Gonzalez says:

This is great but can you please write down the last question. I don't have time but I feel like you are mixing up "and's" and "then's" or it's really difficult for me to follow that last portion.

11. Kevin Santiago says:

Thanks alot man! Keep up the great work.

THANK YOU I UNDERSTAND THANK YOU

13. dagmwit melkamu says:

i wish i would be smart as you are on math buddy

14. ed amansec says:

Sir, the letter e quesion: Red marbles is 7. therefore 20-7= 13 not 19 therefore P(blue) = 5/13.

15. Tetsuya desu says:

Thank you so much T_T

16. Ralph Diab says:

I just dont understand why divide them can plz someone explain please.

17. Hanafi Hamisi says:

wow love you my teacher

18. Daniel Okere says:

Hi I'm still lost as to how the 20 was reduced to 19

19. Empress Emyraldz LLC says:

i know its just a youtube video but can i say i love you? i have struggled with this all week and you made it so easy. your voice calms me down . damn thank you

20. John Patrick Aguilar says:

So if the order was not specified I have to add it to double it?

21. O A says:

King!

I'm studying for the ASVAB and you've been more helpful than my book. Thank you so much.

23. Jana Khaled says:

do we have to answer them all plss answer i have exam

24. mirun nue says:

A letter is selected at random from each of the words “POOR” and “ELITE’’.
​Find the probability that two letters are selected are
​​(a) both vowels b) both consonants c) a vowel and a constant

25. h says:

Can you just pass maths for me

I can pay you

26. Ella and Renate says:

Thanks so much God bless u

27. Darlene Kaiwai says:

the last one confused me, why did you divide by 4??? to get 13-100