STS 201 Probability (Permutation and Combination)

This is the second video on probability which explains permutation and combination as well as it usefulness.
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[@Nimiofalltrades]

Thank you so much faith this was so helpful please keep the videos coming I appreciate your work

[@FaithOlasehinde]

Thanks so much.. always here for you.

[@ezeani_victor]

Keep up the good work bruv

[@FaithOlasehinde]

Thanks a lot

[@akinfolayangafar1231]

You're doing a great job bro... Thanks for the lesson
If I may ask, what tools and app did you use for this lesson

[@FaithOlasehinde]

Welcome
App used is Sketch book
Writing device is graphics monitor

[@Nimiofalltrades]

And also for the last one you solved where we where finding the probability of getting 2 reds and one yellow why did you multiply the number of ways which is 3 by the answer we got

[@FaithOlasehinde]

Since the question didn't specify they order of picking the colours, you have to find the probability of each possible order of picking.
Like R first Y next and R last , or R first R next and Y last.. and finally Y first Rnext and R last.
In The end you will realize everything is the same. So just calculate one and multiply with the number of ways to save time. You will get the same answer.

[@Nimiofalltrades]

Sorry I have a question, the probability of yellow how did you get 2/3 I thought it was suppose to be 2/9

[@FaithOlasehinde]

Yes.. I just checked. It's 2/9. I made mistake. But I think I corrected along the line.