Mean of a probability distrubution​
In order to find the mean, we have to multiply each value with its probability and then add al the results:
Step 1- multiplying each value by its probability
Step 2 - adding all the results
Now, we add all the results we found on the previous step:
Mean = -0.34 - 11.68 - 0.30 - 1.12 - 1.95
Mean = -15.39
Answer: mean = -15.39
