Dec 16 B1 BW Simple Events and Complementary Events

Front

What is theoretical probability?

Back

Theoretical probability is the expected probability of an event occurring, calculated based on the possible outcomes.

Front

If there is a 70% chance of rain, what is the probability that it will NOT rain?

Back

30%.

Front

What is the probability of hitting the Bankrupt when spinning a wheel with 24 sections?

Back

1/24.

Front

A bag has 3 red marbles, 2 blue, and 4 yellow. What is the theoretical probability of pulling a red marble?

Back

1/3.

Front

What is the sum of P(event) and its complement?

Back

1.

Front

Define complementary events.

Back

Complementary events are two outcomes of an event that are mutually exclusive and together cover all possible outcomes.

Front

What is the formula for calculating the probability of an event?

Back

P(event) = Number of favorable outcomes / Total number of outcomes.

Front

What does it mean if an event has a probability of 0?

Back

It means the event is impossible and will not occur.

Front

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

Back

It means the event is certain to occur.

Front

How do you express probability as a fraction?

Back

Probability can be expressed as a fraction of the number of successful outcomes over the total number of outcomes.