Simple 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 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 theoretical probability of pulling a red marble from a bag containing 3 red, 2 blue, and 4 yellow marbles?

Back

1/3

Front

What is the probability of spinning green on a spinner with equal sections of colors?

Back

1/4

Front

What is the probability of spinning an even number on a spinner divided into 4 equal sections numbered 1 to 4?

Back

50% (2 out of 4 sections are even: 2 and 4).

Front

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

Back

1/4

Front

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

Back

4/20 or 1/5.