Important Random Variable MCQ Questions 4

This Post contains Random Variable MCQ Questions. The Random Variable MCQ Questions are about the discrete, continuous, distribution, expectation, and variance of a random variable. Let us start with the Online Random Variable MCQ Questions.

A Random Variable (random quantity or stochastic variable) is a set of possible values from a random experiment.

Random Variable MCQ Questions

• Random numbers are generated by some
• In generating random numbers there are __________ number of assumptions to follow
• In generating random numbers the probability of each digit/number is
• In a family with two children, how many are girls there
• A discrete variable is also called
• Discrete data is usually generated by the process
• The sum of dots when two dice are rolled is an example of
• The number of deaths in a road accident is an example of _____________ variable
• The number of children in a family is an example of a variable
• A variable which can assume all values in the range is called
• Usually, measurements give rise to data
• Continuous variables can assume values
• The amount of milk produced by a cow is ___________ variable
• A variable that takes measurable values is called a
• The set of all possible outcomes of a random experiment is called
• A Chi-Square random variable can assume the value
• The number of automobile accidents per year in Multan city is an example of
• Which of the following is a characteristic of the probability distribution of a random variable?
• If $X$ and $Y$ are random variables, then $E(X-Y)$ is equal to
• If $X$ and $Y$ are independent random variables, then $Var(X-Y)$ is equal to

The domain of a random variable is called sample space. For example, in the case of a coin toss experiment, there are only two possible outcomes, namely heads or tails. A random variable can be either discrete or continuous. The discrete random variable takes only certain values such as 1, 2, 3, etc., and a continuous random variable can take any value within a range such as the height of persons.

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