Lesson 21 - Standard Deviation Empirical Rule Problems in Statistics

This is just a few minutes of a complete course.
Get full lessons & more subjects at: www.MathTutorDVD.com.
You will learn how to apply the empirical rule for standard deviation to solve problems in statistics.

[@simplysavyyy]

Thank you so much for posting this! My professor isn’t good at teaching this to us at the college level but you made it so easy! Thank you!

[@WalFlo]

Thank you very Much for your videos. Very Helpful

[@privat986]

Hi, Question regarding the Empirical Rule. Why is just 68% determined to be the 1 Standard Deviation? Why is it not called for example 70% for 1 std? Why have 1, 2 and 3 std been determined for these specific percentages? I have not found any explanation for this, I have looked around and can not find any logic why you set a certain standard deviation to a certain percentage.

[@DeepakKumar-zy6lu]

how he came to conclusion of 95% ?

[@lexierivera5378]

where did 95 come from 👩🏻‍🦯

[@deanwitter3793]

I'm wondering the same thing

[@jeancarlosperdomo5592]

I am asking the same question

[@illegalskillsexception9826]

@@jeancarlosperdomo5592 en.wikipedia.org/wiki/68%E2%80%9395%E2%80%9399.7_rule

[@jeancarlosperdomo5592]

@@illegalskillsexception9826 thanks ❤

[@thehrplace6291]

For this you need to understand the bell curve.
1 STD Dev is 68%, 2 STD Dev is 95% and 3 STD Dev is 99.7%.