Basic Theoretical Probability

Front

What is theoretical probability?

Back

Theoretical probability is the likelihood of an event happening based on all possible outcomes, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

How do you calculate the theoretical probability of an event?

Back

Theoretical probability = (Number of favorable outcomes) / (Total number of possible outcomes).

Front

If a bag contains 4 green marbles, 3 red marbles, 2 blue marbles, and 1 yellow marble, what is the total number of marbles?

Back

Total marbles = 4 + 3 + 2 + 1 = 10.

Front

What is the theoretical probability of pulling a red marble from a bag with 10 marbles, 3 of which are red?

Back

Theoretical probability = 3/10.

Front

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

Back

Theoretical probability = 3/6 = 1/2.

Front

In a jar with 4 blue, 8 red, and 2 green marbles, what is the probability of choosing a green marble?

Back

Theoretical probability = 2/14 = 1/7.

Front

What is the probability of spinning a number greater than 4 on a spinner with numbers 1 to 6?

Back

Theoretical probability = 2/6 = 1/3.

Front

If a die has 6 sides, what is the theoretical probability of rolling a 3?

Back

Theoretical probability = 1/6.

Front

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

Back

Theoretical probability = 1/4.

Front

What is the theoretical probability of rolling an even number on a standard die?

Back

Theoretical probability = 3/6 = 1/2.