Probability of Simple Events

Front

What is the definition of probability in the context of simple events?

Back

Probability is a measure of the likelihood that a particular event will occur, expressed as a ratio of the number of favorable outcomes to the total number of possible outcomes.

Front

How do you calculate the probability of an event not occurring?

Back

The probability of an event not occurring is calculated as 1 minus the probability of the event occurring.

Front

In a set of colored balls, how do you determine the total number of outcomes?

Back

The total number of outcomes is the sum of all individual outcomes. For example, if there are 7 yellow, 6 green, 3 blue, and 8 red balls, the total is 7 + 6 + 3 + 8 = 24.

Front

What is the formula for calculating the probability of a specific event?

Back

The probability of a specific event is calculated using the formula: P(Event) = Number of favorable outcomes / Total number of possible outcomes.

Front

If a spinner has 8 equal sections labeled A, B, C, D, E, F, G, and H, what is the probability of landing on A, C, or D?

Back

The probability is calculated as P(A or C or D) = (Number of favorable outcomes) / (Total sections) = 3/8.

Front

What is the probability of drawing a specific letter from a set of letter tiles?

Back

The probability of drawing a specific letter is calculated as the number of that letter tiles divided by the total number of letter tiles.

Front

How do you express probability as a fraction?

Back

Probability can be expressed as a fraction where the numerator is the number of favorable outcomes and the denominator is the total number of outcomes.

Front

What is the probability of drawing an orange mint from a bowl containing different colored mints?

Back

The probability is calculated by dividing the number of orange mints by the total number of mints in the bowl.

Front

If there are 9 letter tiles and only 1 tile is the letter D, what is the probability of choosing the letter D?

Back

The probability is P(D) = 1/9.

Front

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

Back

An event with a probability of 0 means that the event is impossible and will not occur.