Define if the distribution is normal or not

[Vital]

Hello.

I wonder how to see if the distribution is normal or not based on the numbers in the table. I attach the screenshot with the table, and it is written that "the distribution appears to be bimodal", so it appears to have two peaks. I understand the the question sounds silly, but I truly don't now how to determine this.

https://drive.google.com/file/d/1YwawScq_rWjd0CzY2FUsIG8dnaJBgfQC/view?usp=sharing

Thank you.

 

[BvU]

What is it we are looking at ?

Ever hear of hypothesis testing or chi square distributions ?

Template something for you ?

 

[BWV]

Try this

https://en.m.wikipedia.org/wiki/Shapiro–Wilk_test

 

[WWGD]

You can also do Q-Q plots or a Chi-squared goodness of fit by finding sample mean and standard error
orand considering the percent of data within 1,2,3 s.e from the sample mean, altho maybe the Q-Q plot does this too.