Is this data Normally Distributed? Methods for Checking for Normality
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- čas přidán 10. 09. 2024
- 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.
A real teacher . Pure info . Fast and efficient.
finally, someone who knows... thank you!
literally saved my life thanks
very nice explanation
Thank you for this amazing video
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.
Do you have these methods for excel ?
What calculator is this please
thanks for posting this helpful tip
Now i know not all data is normally distributed, but we assign that it is based on a few checks.
How to Check if data is normally distributed, clearly explained
sooo helpful! thank you!!
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?
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
very helpful though it was a little fast around the empirical rule part
ty helped me and my hw
your calculator...🔥