MAC Probability Test

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 (impossible) and 1 (certain).

Front

What is the probability of an event that is certain?

Back

The probability of an event that is certain is 1.

Front

What is the probability of an event that is impossible?

Back

The probability of an event that is impossible is 0.

Front

How do you calculate the probability of an event?

Back

Probability = (Number of favorable outcomes) / (Total number of possible outcomes).

Front

What is the probability of not spinning A if the probability of spinning A is 1/4?

Back

The probability of not spinning A is 1 - 1/4 = 3/4.

Front

If a spinner is divided into 8 equal sections, what is the probability of landing on a number greater than 4?

Back

There are 4 numbers greater than 4 (5, 6, 7, 8), so the probability is 4/8 = 1/2.

Front

What is the probability of rolling a die and getting an odd number?

Back

There are 3 odd numbers (1, 3, 5) on a die, so the probability is 3/6 = 1/2.

Front

What is the probability of flipping a coin twice and getting Tails both times?

Back

The probability is (1/2) * (1/2) = 1/4.

Front

What does 'unlikely' mean in terms of probability?

Back

'Unlikely' means that the event has a low probability of occurring, typically less than 50%.

Front

What does 'probable' mean in terms of probability?

Back

'Probable' means that the event has a high chance of occurring, typically more than 50%.