Standard Deviation Using The Shortcut Formula




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Alynight: omg i have a teacher that gave us n=45 and it was way too much data how do we find a shortcut for so many numbers?

Kailani Talag: An easier formula is
square root of np (1-p)
when n = number of trials and p is probability

April Alfaro: Haha why work harder when you can find the same result !!! Sduhhh

April Alfaro: Thank you!! I see it Now how do I find the variance ?

xxNeoncryxx: Thanks Professor!

cristianwero80: people don't suck at mad. People are just freaking lazy to think critically and figure crap out

Chelle Weatherspoon: Absoloutely loved the lesson.  Too away all my fears about the standard deviation formula.  I was able to set up a way in excel to calculate myself after watching this lesson.  Thanks so much.

Percy Richmond: can you use this shortcut for both population and sample problems +70TheProfessor

roy: Thankyou sir it was useful.....!

Gamehawk: Man you are a god send. My professor confused me but this was wayyyyy easier. Thank You Sir!!!

Demetre Young: Useful, way easier to watch then read lab manuals. 

Hunter Frost: maggot

Mikaela Makoto: Thank you so much! This really helped out! (: 

Dan Curwin: awesome

Midnight Dreams: I am doing an online statistics class this summer and these formulas are kicking my butt. Thank you for putting this up it was a major help.

Jurgen Thano: Thank you :)

Jon Bobis: Thank you for this amazing video!

Lori Aylwin: This was amazing! Thank you! I spent hours doing this the long way and I am behind in my class. Your demonstration will make my life easy. I appreciate you!

Jonathan Miller: me tooo yo!!

Sanjay Shrestha: Thanks
Rating:
Standard Deviation Using the Shortcut Formula 5 out of 5

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Standard Deviation Using the Shortcut Formula