title: Estimating skewness of histogram in MATLAB
body: <p>What test can I do in MATLAB to test the spread of a histogram? For example, in the given set of histograms, I am only interested in 1,2,3,5 and 7 (going from left to right, top to bottom) because they are less spread out. How can I obtain a value that will tell me if a histogram is positively skewed?</p>
  
  <p>It may be possible using Chi-Squared tests but I am not sure what the MATLAB code will be for that.
  <img src="https://i.stack.imgur.com/Xr6J0.png" alt="enter image description here"></p>