Question

If a random variable having its probability
distribution function f(x), then E(x) is called as
1) Geometric mean
2) Arithmetic mean
3) variance
4) first Quartile​

Answer 1

If a random variable has its probability distribution function f(x), then E(x) is called (2) Arithmetic mean.

Step-by-step explanation:

• The arithmetic mean is the most basic and extensively used method of calculating a mean or average. It's as simple as adding up a bunch of numbers and then dividing that total by the number of numbers in the series.
• The anticipated value, or mean, of a random variable, indicated by E(x) or, is a weighted average of the possible values for the variable. The probability mass function determines the weights in the discrete situation, whereas the probability density function determines the weights in the continuous case.