# Mean, Mode, Median of a histogram?

Based on my understandings, I would say for the below histogram that the mode is zero, the mean is between 0 & 1 and the median is 1. I'm I right?

• It's not a histogram, it's a bar plot. Anyway, I would say all except mean are 0. Nov 4, 2021 at 7:10

• Mean would be the sum of $$x$$-axis values multiplied by their frequencies, i.e. $$y$$-axis, i.e. $${\sum_i x_i y_i} \Big/ {\sum_i y_i}$$. You could calculate it from the plot with some degree of precision after reading the heights from $$y$$-axis.
• Median is the value "in the middle" if you sorted the values. It would be 1 if after stacking the bars things on right would be slightly higher than things on left. The plots have $$y$$-axis on the logarithmic scale, so again, you would need to read the height of the bars to figure out if $$y_0 \approx y_1 + y_2 + y_3$$, but you can visually verify that this is not the case, so the median is also zero.
• It would be helpful, I suspect, to indicate that the mean will be approximately $0.001.$ Your remarks about "measure the height of the bars" are puzzling, considering their values are clearly marked on the vertical axis (on a logarithmic scale).