Is this data Normally Distributed? Methods for Checking for Normality

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.

[lavc]

A real teacher . Pure info . Fast and efficient.

[albertuzzle]

finally, someone who knows... thank you!

[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.

[beau]

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?

[ojd]

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

[ojd]

How to Check if data is normally distributed, clearly explained

[the_joxter]

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