Thank you for your question! If you are talking about the question beginning at 4:41 - For the grouped frequency mean we can see that the most people (The modal value) of the data is 75% but if you were to lay out every number one by one and then do the regular mean method on them, you'd get an answer of 65% and not 75%. To test what I'm saying, add up each number one by one and do the regular mean method on it, you should still get a result of 65%
Why 65 % not 75% likelihood?
Thank you for your question! If you are talking about the question beginning at 4:41 -
For the grouped frequency mean we can see that the most people (The modal value) of the data is 75% but if you were to lay out every number one by one and then do the regular mean method on them, you'd get an answer of 65% and not 75%.
To test what I'm saying, add up each number one by one and do the regular mean method on it, you should still get a result of 65%