7th Grade Probability Review

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What is the formula for calculating probability?

Back

The probability of an event is calculated using the formula: P(E) = Number of favorable outcomes / Total number of outcomes.

Front

If a spinner has 8 equal sections, what is the probability of landing on any one section?

Back

Front

What does it mean if an event is 'certain'?

Back

An event is 'certain' if it is guaranteed to happen, with a probability of 1.

Front

What does it mean if an event is 'impossible'?

Back

An event is 'impossible' if it cannot happen at all, with a probability of 0.

Front

What is the probability of rolling a number greater than 4 on a six-sided die?

Back

Front

In a bag of 10 marbles (4 red, 6 blue), what is the probability of picking a blue marble?

Back

Front

What is the probability of winning a raffle with 100 tickets if you buy 10 tickets?

Back

Front

What does 'likely' mean in terms of probability?

Back

'Likely' means that the event has a high chance of occurring, typically a probability greater than 0.5.

Front

What is the probability of drawing a red marble from a jar containing 3 red and 5 blue marbles?

Back