Probability

Front

What is probability?

Back

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

Front

What is the probability of an event that is impossible?

Back

0

Front

What is the probability of an event that is certain?

Back

1

Front

What does it mean if an event has a probability of 1/2?

Back

It means the event is equally likely to occur or not occur.

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 experimental probability?

Back

Experimental probability is the probability based on the actual results of an experiment, calculated as the number of times an event occurs divided by the total number of trials.

Front

If a spinner has 8 equal regions, what is the probability of landing on any one specific region?

Back

1/8.

Front

What is the probability of landing on an even number if a spinner has the numbers 10, 20, 30, 40, 50, 60, 70, 80?

Back

1 (since all numbers are even).

Front

What is the probability of an event that is equally likely as unlikely?

Back

1/2.

Front

If the probability of an event is 7/8, what percentage does this represent?

Back

88%.