Probability

When you flip a fair coin, the two outcomes (heads and tails) are…

1. Aequally likely
2. Bimpossible
3. Calways heads
4. Dcertain

Two events are 'equally likely' when…

1. Athey have the same chance of happening
2. Bone always happens
3. Cneither can happen
4. Done is certain

How many equally likely outcomes does a fair coin have?

Why is flipping a coin a good way to simulate whether a kitten is male or female?

1. ABoth have two equally likely outcomes
2. BCoins are heavy
3. CKittens like coins
4. DIt is not a good way

A bag has 3 red and 3 blue balls. Taking a red or a blue ball is…

1. Aequally likely
2. Bimpossible
3. Ccertain to be red
4. Dcertain to be blue

On a normal 6-sided dice, rolling an even number (2, 4, 6) or an odd number (1, 3, 5) is…

1. Aequally likely
2. Bimpossible
3. Calways even
4. Dcertain

Heads and tails on a fair coin are equally likely.

If a bag has 5 red balls and 1 blue ball, red and blue are equally likely to be picked.

A bag has 5 red and 4 blue balls. Red and blue are equally likely to be picked.

A bag has 2 red and 2 blue balls. Red and blue are equally likely to be picked.

A bag has 2 red and 6 blue balls. Red and blue are equally likely to be picked.

A bag has 1 red and 4 blue balls. Red and blue are equally likely to be picked.

A bag has 6 red and 4 blue balls. Red and blue are equally likely to be picked.

A bag has 6 red and 5 blue balls. Red and blue are equally likely to be picked.

A bag has 5 red and 5 blue balls. Red and blue are equally likely to be picked.

A bag has 4 red and 3 blue balls. Red and blue are equally likely to be picked.

A bag has 5 red and 1 blue balls. Red and blue are equally likely to be picked.

A bag has 6 red and 7 blue balls. Red and blue are equally likely to be picked.

A bag has 7 red and 1 blue balls. Red and blue are equally likely to be picked.

A bag has 8 red and 3 blue balls. Red and blue are equally likely to be picked.