Is this data Normally Distributed? Methods for Checking for Normality

This problem is from the following book: goo.gl/t9pfIj
We examine the weights for 50 strawberries to determine if the weights are approximately Normally distributed. First, we look at a histogram of the data and confirm it is unimodal and roughly symmetric. Next, we use the empirical rule (the 68-95-99.7 Rule) to see if about 68% of the weights fall within one standard deviation. Finally, we use a normal probability plot on a TI-84 Plus C Silver Edition.

[@1966lavc]

A real teacher . Pure info . Fast and efficient.

[@albertuzzle5912]

finally, someone who knows... thank you!

[@alexk-om5ls]

literally saved my life thanks

[@arnoutvandenbulcke7053]

very nice explanation

[@MrEazyer777]

Thank you for this amazing video

[@cantkeepitin]

The word approximately is very important! Because this data is 100% NOT normal, because random data from a normal distribution would never have that roundings. It is manipulated data, belonging to a discrete distribution.

[@MrEazyer777]

Do you have these methods for excel ?

[@AnsughulGodwin-mb8cq]

What calculator is this please

[@vykanguyen9677]

thanks for posting this helpful tip

[@ojd3708]

Now i know not all data is normally distributed, but we assign that it is based on a few checks.

[@ojd3708]

How to Check if data is normally distributed, clearly explained

[@itsmevivi_]

sooo helpful! thank you!!

[@beau6679]

Great video. Thank you very much. I also have one question. How do we know if a distribution is normal without the dataset, just with the mean and the standard deviation?

[@doctorharsh7133]

Suppose mean is 40.
SD is suppose 12.
So half of mean is 20 which is more than SD and hence this is normal distribution.
Half of mean>SD suggest ND

[@the_joxter]

very helpful though it was a little fast around the empirical rule part

[@willn6670]

ty helped me and my hw

[@eshamansoor3677]

your calculator...🔥