Simple Probability and Its Complement(7.6E)

Front

What is the probability of rolling a 1 on a regular die?

Back

P = 1/6

Front

If there are 9 planets and you need Mars and Pluto, what is the probability of NOT drawing either?

Back

P = 7/9

Front

What is the probability of spinning an odd number on a spinner with 5 sections?

Back

P = 3/5

Front

What is the complement of choosing a red marble if there are 8 red marbles in a jar of 15?

Back

P' = 7/15

Front

If P(A) = 2/8, what is P(not A)?

Back

P(not A) = 3/4

Front

Define 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 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 for two events to be complementary?

Back

Two events are complementary if the occurrence of one event means the other cannot occur.

Front

If a bag contains 5 blue marbles and 3 red marbles, what is the probability of drawing a blue marble?

Back

P(blue) = 5/8.

Front

What is the total probability of all possible outcomes in a probability experiment?

Back

The total probability of all possible outcomes is always 1.