Unit 4 Flex Review

Front

What is the definition of an impossible event in probability?

Back

An impossible event is an event that cannot occur, which has a probability of 0%.

Front

What is the theoretical probability of an event?

Back

The theoretical probability of an event is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

Front

If a coin is flipped 10 times, what is the expected number of heads?

Back

The expected number of heads is 5, as there is a 50% chance of getting heads on each flip.

Front

What is the formula to calculate the probability of selecting a specific item from a group?

Back

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

Front

What does a probability of 0% indicate about an event?

Back

A probability of 0% indicates that the event is impossible and will not occur.

Front

If there are 5 green, 2 red, and 3 blue jelly beans, what is the total number of jelly beans?

Back

The total number of jelly beans is 10 (5 + 2 + 3).

Front

How do you predict outcomes based on survey data?

Back

To predict outcomes, use the ratio of the surveyed group to estimate the results for a larger group.

Front

What is the probability of selecting a red jelly bean from a bag containing 10 jelly beans?

Back

The probability is 2/10 or 1/5.

Front

What is the expected outcome when rolling a fair die?

Back

The expected outcome is the average of all possible outcomes, which is 3.5 for a six-sided die.

Front

What is the definition of a favorable outcome in probability?

Back

A favorable outcome is an outcome that satisfies the conditions of the event being measured.