Simple, Theoretical, and Experimental Probability

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 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

How do you calculate the probability of a single event?

Back

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

Front

What is the probability of rolling a 7 on a single die?

Back

0, because a standard die has only numbers 1 to 6.

Front

What is the probability of drawing a red card from a standard deck of cards?

Back

1/2, because there are 26 red cards out of 52 total cards.

Front

What is P(not A)?

Back

P(not A) = 1 - P(A), which represents the probability of the event not occurring.

Front

If a spinner has 4 equal sections: red, blue, green, and yellow, what is the probability of landing on green?

Back

1/4, because there is 1 favorable outcome (green) out of 4 possible outcomes.

Front

What does 'more likely' mean in probability?

Back

'More likely' means that the probability of an event occurring is greater than 0.5.

Front

What does 'less likely' mean in probability?

Back

'Less likely' means that the probability of an event occurring is less than 0.5.