formative probability

Which of the following is an example of a simple probability experiment?

• a) Predicting the weather for next week.

• b) Measuring the height of all students in a class.

• c) Flipping a coin ten times and recording the results.

• d) Solving a complex algebraic equation.

A tree diagram is useful for:

• Calculating the area of a circle.

• Showing all possible outcomes of a multi-stage experiment.

• Measuring the volume of a cube.

• Solving linear equations.

How many possible outcomes are there when you spin the spinner?

• 1

• 2

• 3

• 4

What do you call the set of all possible outcomes of an experiment?

• Experiment

• Event

• Sample Space

• Outcome

5. A bag contains 3 red marbles and 2 blue marbles. If you draw one marble without looking, what is the probability of drawing a blue marble?

• 1/5

• 2/5

• 3/5

• 2/3

Two teams decided to flip a coin once to determine who plays first.

• Experiment

• Outcome

• Sample Space

• Event

You rolled a die once and the number 2 turned up.

• Experiment

• Outcome

• Sample Space

• Event

You were asked to select a girl at random in your class.

• Experiment

• Outcome

• Sample Space

• Event

Lorna selects an outfit from these choices:

{𝑔𝑟𝑒𝑒𝑛 𝑠ℎ𝑖𝑟𝑡𝑠 𝑎𝑛𝑑 𝑏𝑙𝑎𝑐𝑘 𝑗𝑒𝑎𝑛𝑠, 𝑔𝑟𝑒𝑒𝑛 𝑠ℎ𝑖𝑟𝑡 𝑎𝑛𝑑 𝑔𝑟𝑎𝑦 𝑗𝑒𝑎𝑛𝑠, 𝑏𝑙𝑢𝑒 𝑠ℎ𝑖𝑟𝑡𝑠 𝑎𝑛𝑑 𝑏𝑙𝑎𝑐𝑘 𝑗𝑒𝑎𝑛𝑠,

𝑏𝑙𝑢𝑒 𝑠ℎ𝑖𝑟𝑡𝑠 𝑎𝑛𝑑 𝑔𝑟𝑎𝑦 𝑗𝑒𝑎𝑛𝑠}

• Experiment

• Outcome

• Sample Space

• Event

There are red, green, and yellow candies inside the box of teacher Anne as a reward to her students. Jay as one of the students hopes to get a yellow candy.

• Experiment

• Outcome

• Sample Space

• Event