18 Q SIMPLE & INDEPENDENT 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 is an independent event in probability?

Back

An independent event is an event whose outcome does not affect the outcome of another event.

Front

How do you calculate the probability of a single event?

Back

The probability of a single event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

Front

What is the formula for calculating the probability of NOT an event?

Back

P(not A) = 1 - P(A), where P(A) is the probability of the event A.

Front

If a spinner has 5 equal sections, what is the probability of landing on one specific section?

Back

The probability is 1/5, since there is one favorable outcome out of five possible outcomes.

Front

What is the probability of drawing a specific color marble from a bag?

Back

The probability is calculated by dividing the number of that color marbles by the total number of marbles in the bag.

Front

What does it mean if two events are dependent?

Back

Two events are dependent if the outcome of one event affects the outcome of the other event.

Front

How do you find the combined probability of two independent events occurring?

Back

Multiply the probabilities of each event: P(A and B) = P(A) * P(B).

Front

What is the probability of rolling a 3 on a standard six-sided die?

Back

The probability is 1/6, since there is one favorable outcome out of six possible outcomes.

Front

If a bag contains 10 marbles (3 red, 4 blue, 3 green), what is the probability of drawing a blue marble?

Back

The probability is 4/10 or 2/5.