Probability of occurrences

[Shy12]

Hi!

I am wondering could someone help me with an issue I am having as I am new to probabilities. I have data that I calculated the correlations for and plotted the distribution as a histogram and getting a bell shape curve as expected and now I want to know the likelihood of those correlations occurring. I have calculated these values accounting for above and below the mean. I need to make a visual to represent these values but I am unsure what’s the best graph to represent these values. I have tried a histogram but because probabilities are positive this doesn’t seem to work as I do expect that bell shape curve again. When I look at my data the probabilities gradually increase to a point and then start to decrease but it’s when I try and plot the histogram it’s like once the peak is reached the probabilities fold back on each other because they are all positive values and it’s not a fair representation of the data.

Thank you!

 

[Steven G]

Can we see the data and your work so we know how to help you.

The area under the bell curve must equal 1 as it contains all possible events. To the left of the high point that area should add up to 1/2 and the the area to the right of the high point in the bell curve should add up to the 1/2.