Simple 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 does it mean if the probability of an event is 0?

Back

It means the event will not happen.

Front

What does it mean if the probability of an event is 1?

Back

It means the event will definitely happen.

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 selecting a brown candy from a bowl with 4 yellow, 6 orange, 3 green, 5 blue, and 2 brown candies?

Back

1/10

Front

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

Back

50% (3 even numbers: 2, 4, 6 out of 6 total numbers).

Front

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

Back

1/2 (26 red cards out of 52 total cards).

Front

What is the probability of rolling a 5 on a standard die?

Back

1/6 (1 favorable outcome out of 6 possible outcomes).

Front

What is the probability of picking a number 8 two times in a row from numbers 1-30?

Back

1/900 (1/30 for the first pick and 1/30 for the second pick: 1/30 * 1/30 = 1/900).

Front

What is the probability of spinning a number that does not exist on a spinner?

Back

0 (there are no favorable outcomes).