What would you have to add to a package of marbles so that the probability of getting a red marble is 7/8?

## One Probability

How many red marbles do you need?

Add green marbles to a bag so that the probability of drawing a green marble is 3/4.

## Unfair Coins

Explore the probabilities associated with a coin toss that is more likely to land on one side.

## Choosing Multiples of 5

Investigate the probability of selecting multiples in a group of real numbers.

## Triangles in a Hexagon

Determine the probability that a point inside a hexagon is also inside a triangle that shares common vertices.

## Varying Probabilities

Examine the probability of a spinner landing in a sector of a circle graph with unequal areas.

## Triangle Inside a Parallelogram

Determine the probability that a point inside a triangle will also be in a parallelogram.

## Monte Carlo Method

Generate random numbers to find a mystery number related to the radius of a circle.

## Let’s Make a Deal

Find the best method for winning a car behind a mystery door.