
If the has the following probability distribution:
then


Important Questions on Probability Distributions
The expected value of for the following

Identify the random variable as either discrete or continuous in the following. If the random variable is discrete, list its possible values.
An economist is interested in the random variable the number of unemployed graduates in a town of population lakh.

Identify the random variable as either discrete or continuous in each of the following. If the random variable is discrete, list its possible values.
The random variable is the amount of syrup prescribed by a physician

Identify the random variable as either discrete or continuous in each of the following. If the random variable is discrete, list its possible values.
A person on a high protein diet is interested in the random variable the gain in weight in a week.

Identify the random variable as either discrete or continuous in each of the following. Write down the range of it.
white rats are available for an experiment. Twelve rats are male. Scientist randomly selects rats number of female rats selected on a specific day.

Identify the random variable as either discrete or continuous in each of the following. If the random variable is discrete, list its possible values.
A highway-safety group is interested in studying the speed (in ) of a car at a checkpoint.

The probability distribution of discrete is as follows
Determine the value of .

The probability distribution of discrete is as follows
Find .
