Continuous or Discrete

Front

What is a discrete variable?

Back

A discrete variable is a type of quantitative variable that can take on a countable number of values. Examples include the number of students in a class or the number of suitcases lost by airlines.

Front

What is a continuous variable?

Back

A continuous variable is a type of quantitative variable that can take on an infinite number of values within a given range. Examples include height, weight, and temperature.

Front

Give an example of a discrete variable.

Back

The number of orange Skittles in a bag.

Front

Give an example of a continuous variable.

Back

The height of students in a classroom.

Front

What does it mean if a variable is countable?

Back

If a variable is countable, it means that you can list its possible values, often as whole numbers.

Front

What is the range of a set of numbers?

Back

The range is the difference between the highest and lowest values in a set of numbers.

Front

What is the range of the set {-5, -1, 0, 1, 5}?

Back

The range is 10 (5 - (-5)).

Front

If Adam earns $10 for each car he washes, what type of variable is the number of cars he washes?

Back

Discrete, because it can only take on whole number values.

Front

What type of data is represented by the temperature in a city?

Back

Continuous, because it can take on any value within a range.

Front

Is the number of goals scored in a soccer match discrete or continuous?

Back

Discrete, because you can count the number of goals.