Probability

Front

What is probability?

Back

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

Front

What is the probability of an event that is certain to happen?

Back

1 (or 100%)

Front

What is the probability of an event that is impossible?

Back

0 (or 0%)

Front

How do you calculate the probability of a single event?

Back

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

Front

What is the probability of spinning an even number on a spinner with numbers 1 to 6?

Back

3/6 or 1/2

Front

What is the probability of spinning green on a spinner with 4 equal sections: red, blue, green, yellow?

Back

1/4

Front

Which color marble is least likely to be pulled from a jar containing 3 red, 5 green, and 2 blue marbles?

Back

Blue

Front

What is the probability of the spinner landing on an odd number if it has numbers 1 to 6?

Back

50% or 3/6

Front

If you pick a marble from a bag containing 3 black, 2 white, and 5 red marbles, what is the probability of choosing either a black or white marble?

Back

3/5

Front

What does it mean if two events are independent?

Back

Two events are independent if the occurrence of one does not affect the occurrence of the other.