Sample Space and Probability

Front

What is the probability of an event not occurring?

Back

P(not A) = 1 - P(A)

Front

What is the total number of outcomes when tossing a coin and rolling a die?

Back

12 outcomes (2 outcomes from the coin and 6 from the die: 2 x 6 = 12).

Front

If a bag contains 30 pieces of candy with 3 being lemon, what is the probability of drawing a lemon?

Back

P(lemon) = Number of lemon candies / Total candies = 3/30 = 1/10.

Front

What is the definition of an outcome in probability?

Back

An outcome is the result of a single observation of an experiment.

Front

How many outcomes are there when choosing a vowel (a, e, i, o, u) and then a number (2 or 6)?

Back

10 outcomes (5 vowels x 2 numbers = 10).

Front

What is a sample space in probability?

Back

A sample space is the set of all possible outcomes of a probability experiment.

Front

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

Back

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

Front

What does it mean for outcomes to be equally likely?

Back

Outcomes are equally likely if each outcome has the same chance of occurring.

Front

If the probability of event A is 0.25, what is the probability of not A?

Back

P(not A) = 1 - P(A) = 1 - 0.25 = 0.75.

Front

What is the probability of rolling a 4 on a standard die?

Back

P(rolling a 4) = 1/6.