Random Variables

Which of the following random variables is NOT continuous?

• Amount of gasoline in a car.
• Time it takes to commute to work.
• Number of goals scored by a hockey team.
• Lifetime of a AAA battery.

A random variable is defined by a rule that assigns a _______________ to every outcome in a sample space.

• number

• letter

• Event

• probability

Tags

CCSS.HSS.MD.A.1

State whether it is Discrete or Continuous;

The sum rolled on a pair of dice

• Discrete

• Continuous

Tags

CCSS.HSS.CP.A.1

CCSS.HSS.MD.A.3

State whether it is Discrete or Continuous;

The speed of a car

• Discrete

• Continuous

Is this a probability distribution?

• No, the sum of p(x) does not equal 1.

• Yes, all p(x) are between 0 and 1.

• No, all p(x) are not between 0 and 1.

• Yes, the sum p(x) is 1.

Tags

CCSS.HSS.MD.A.1

CCSS.HSS.MD.A.3

Is this a probability distribution?

• No, the sum of p(x) does not equal 1.

• Yes, all p(x) are between 0 and 1.

• No, all p(x) are not between 0 and 1.

• Yes, the sum p(x) is 1.

Tags

CCSS.HSS.MD.A.1

CCSS.HSS.MD.A.3

Which of the following random variables is NOT continuous?

• Amount of gasoline in a car.
• Time it takes to commute to work.
• Number of goals scored by a hockey team.
• Lifetime of a AAA battery.

Which of the following refers to a rule that assigns a numerical value or characteristic to an outcome of an experiment?

• Expected Value

• Random Variable

• Range Space

• Probability Distribution

Tags

CCSS.HSS.MD.A.1

CCSS.HSS.MD.A.2

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.4

Which of the following variables can assume only a finite number of values and can be determined by simply counting?

• Continuous Random Variable

• Discrete Random Variable

• Discrete Probability Distribution

• Pay Off Value

Which of the following is a discrete random variable?

• The height of the building.

• The time to finish answering a test.

• The number of times you visit the social media in a day.

• The weight of the students.