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
Standard Deviation Using the Shortcut Formula5
out of 5