Recently I had some interviews. I got a common question:
how do u do with the data(or check whether the data is correct) before you do the analysis or regression?

My answer is : plot the gragh of the data to see whether the distribution and the trend is reasonal, and calculate the descriptive statistics.

I am not sure whether this way is feasible. Please let me know your methodology and suggestions. I look forward to your reply.

Cheers.