Expected value and Mean value

Expected value noun - The sum of the values of a random variable divided by the number of values.

Mean value and expected value are semantically related. In some cases you can use "Mean value" instead a noun phrase "Expected value".

Mean value noun - An average of n numbers computed by adding some function of the numbers and dividing by some function of n.

Expected value and mean value are semantically related. Sometimes you can replace phrase "Expected value" with "Mean value", this phrases are similar.