Stats are notorious for being made up or misleading
E.g.: during a political debate in USA , a member of the opposition claimed that employment had gone up during the President’s term of office; yes it had … but only because the population had increased, the number of unemployed people had also increased.
When the data has many different measurements involved in it, the data is usually grouped in intervals (classes). Try to have between 8 and 14 classes. And start with a value below the minimum in the data.
Tally : lines used to count up the frequency of scores
Frequency is the number of times that score/value appears