# Is this distribution bimodal? [duplicate]

so understanding what unimodal, bimodal & multimodal distributions mean was easy, but I wonder how strict should I be when I am applying the definitions to real data, in that sense, I need to ask, does the peak at 4 in the histogram below large enough to consider the distribution bimodal? if yes, is the other peak at 10 large enough to consider the curve actually multimodal?

I wonder if whenever I find a peak, no matter how small it is, should I consider it or if peaks at certain sizes can be too small and considered negligible.

• There is just too little data to tell. Your second mode is based on just two observations. Consider the distribution to be not yet known with probably one peak at 7 and gather more data. Mar 16, 2018 at 7:05
• @Bernhard Thank you for answering. I know the data is limited, but this is what I got since I have an assignment with this data and I have to describe the distribution based on them (p.s: I am sure you meant my second mode is made of 4 observation, but I know it is too little) Mar 16, 2018 at 7:12
• No, I mean literally two observations: Take two away and the "mode" disappears. Change one to a 3 and one to a 5 and your peak becomes a valley. You do not have a distribution here but observations from a distribution and you have to little observations to claim more, then that there appears to be one mode somewhere in the middle and the rest is unknown. Mar 16, 2018 at 8:03