What is an example of discrete variable?

Discrete variables are countable in a finite amount of time. For example, you can count the change in your pocket. You can count the money in your bank account. You could also count the amount of money in everyone’s bank accounts.

Can you give 5 examples of discrete random variables?

The following are examples of discrete random variables: The number of cars sold by a car dealer in one month. The number of students who were protesting the tuition increase last semester. The number of applicants who have applied for a vacant position at a company.

Is eye color discrete or continuous?

Examples. The following are examples of discrete variables: Gender. Eye color (brown, blue, green, hazel)

What is nominal data examples?

Examples of nominal data include country, gender, race, hair color etc. of a group of people, while that of ordinal data includes having a position in class as “First” or “Second”. Note that the nominal data examples are nouns, with no order to them while ordinal data examples come with a level of order.

Is foot length discrete or continuous?

Shoe size is whole number (discrete), but the underlying measure is foot length which is measurement (continuous) data.

Is hair color a discrete?

Hair colour is a type of discrete data because the values are distinct. You either have one hair colour or another! Continuous data covers a range, so each category is not separate but runs into the next.

Is Skin Colour discrete variable?

This test checks five discrete categories – a baby’s Appearance (skin color), Pulse (heart rate), Grimace (reflexes), Activity (muscle tone), and Respiration (breathing) – to see if extra medical care or emergency care is needed.

What are discrete and categorical variables?

Categorical variables contain a finite number of categories or distinct groups . Categorical data might not have a logical order. For example, categorical predictors include gender, material type, and payment method. Discrete variables are numeric variables that have a countable number of values between any two values.

How do you calculate a discrete random variable?

For a discrete random variable the variance is calculated by summing the product of the square of the difference between the value of the random variable and the expected value, and the associated probability of the value of the random variable, taken over all of the values of the random variable. In symbols, Var(X) = (x – µ)2 P(X = x)

What are discrete variables in statistics?

A discrete variable is a kind of statistics variable that can only take on discrete specific values. The variable is not continuous, which means there are infinitely many values between the maximum and minimum that just cannot be attained, no matter what.

What are some examples of discrete data?

Discrete data is information that we collect that can be counted and that only has a certain number of values. Examples of discrete data include the number of people in a class, test questions answered correctly, and home runs hit. Tables and graphs are two ways to show the discrete data that you collect.