RANDOM VARIABLES (POST QUIZ)

It Is a variable whose values depends on the outcome of an experiment

• Random Variables

• Experiments

• Discrete Variable

• Finite Variables

A variable which may take on only a countable number of distinct values such as 0,1,2,3,4,......

• Finite Random Variable

• Continuous Random Variable

• Discrete Random Variables

• None of the Above

A random variable that has an infinite number of values as a result of measurement, or if its set of possible values if from an interval of real numbers

• Probability Random Variable

• Finite Random Variables

• Discrete Random Variables

• Continuous Random Variable

It is a table, a graph, or a formula listing all possible values that a discrete random variable can take on, along with the associated probabilities.

• Discrete Probability Distribution

• Continuous Probability Distribution

• Infinite Probability Distribution

• Random Probability Distribution

Let P(X) be the probability of a random variable X.

The sum of the probabilities of all the possible values of the random variable is "0"

• False

• True

• Cannot be determined

if a real number 𝑥 is not a possible value for a random variable 𝑋, then it has a probability of 0

• True

• False

• Cannot be Determined

Determine whether the given random variable is discrete or continuous.

"The length of time in seconds it takes for the ball to return to the ground when tossed vertically upward"

• Discrete

• Continuous

• Cannot be determined

Determine whether the given random variable is discrete or continuous.

"The number of even numbers that are drawn from a winning 6 number lotto combinations"

• Discrete

• Continuous

• Cannot be determined

Determine whether the given random variable is discrete or continuous.

"The number of person who can fit in a single run of an elevator"

• Discrete

• Continuous

• Cannot be determined

Determine whether the given random variable is discrete or continuous.

"The number of sandwiches sold in one day at a school canteen"

• Discrete

• Continuous

• Cannot be determined