Basic Probability

Front

What is the definition of 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 probability of flipping a fair coin and getting heads?

Back

1/2

Front

When rolling a standard six-sided die, what is the probability of rolling a number less than 3?

Back

1/3

Front

What is the probability of rolling a 15 on a standard number cube?

Back

Impossible (0) because a standard number cube only has numbers 1 through 6.

Front

How do you calculate the probability of an event?

Back

Probability of an event = (Number of favorable outcomes) / (Total number of possible outcomes).

Front

In a box with 3 limes, 5 grapes, and 2 oranges, what is the probability of not selecting a lime?

Back

7/10

Front

If there are 5 green, 6 yellow, 8 blue, and 7 brown marbles, what is the probability of choosing a blue marble?

Back

4/13

Front

What is the total number of outcomes when flipping a coin twice?

Back

4 (HH, HT, TH, TT).

Front

What is the probability of drawing a red card from a standard deck of cards?

Back

1/2 (26 red cards out of 52 total cards).

Front

What is the difference between independent and dependent events in probability?

Back

Independent events do not affect each other's outcomes, while dependent events do.