Tricks of using calculator - finding mean, standard deviation, variance

As a student who is learning mathematics, you are sure need to know how to make well use of CASIO calculator.

Today, I'm going to share with you some videos that can help you get the solution by using calculator within 3 minutes!

Apply these to solve your problems!

1. Finding mean of data

2. Finding standard deviation of data

2. Finding variance of data

 variance is power 2 of standard deviation

Enjoy!