To solve the given question, we need to evaluate each statement based on the context provided and determine which ones are true.
Based on the analysis of the given options and context, the correct statements are:
These are the statements that are true according to the context and should be ticked.
Find the mean deviation about the mean for the data 38, 70, 48, 40, 42, 55, 63, 46, 54, 44.