I have this distribution of data which is positively skewed, but I am having trouble finding the mean, can you help me out? I’m trying to prove mean > median > mode. As you can see, most of the data is clustered towards the lower side of the scale, but I am confused to know that the mean is to the right, maybe I am making the mistake, the mean is not affected by the frequency, but rather only by the income itself?

Multiply the midpoint of each interval by the corresponding frequency (use whatever you want for the Less than 31 category), sum these products, then divide by the sum of the frequencies.

Median: I still don’t understand how you got to the 51-60 element, are u sorting in ascending order the (income midpoint * frequency) row or the Income row on its own.