Probability 10 Question Reteach

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1, where 0 means the event will not happen and 1 means it will definitely happen.

Front

What is a simplified fraction?

Back

A simplified fraction is a fraction that has been reduced to its lowest terms, meaning the numerator and denominator have no common factors other than 1.

Front

How do you calculate the probability of an event?

Back

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

Front

What is the probability of spinning a number greater than 4 on a spinner with numbers 1 to 9?

Back

The probability is 5/9, since the favorable outcomes are 5, 6, 7, 8, and 9.

Front

What does it mean if two events are independent?

Back

Two events are independent if the occurrence of one event does not affect the probability of the other event occurring.

Front

What is a two-way frequency table?

Back

A two-way frequency table displays the frequency of different outcomes in two categories, allowing for easy comparison and analysis.

Front

How do you find the percentage of a group?

Back

To find the percentage, divide the part by the whole and multiply by 100.

Front

What is the probability of drawing 2 winning tickets from a raffle of 28 tickets?

Back

The probability is 1/28, assuming only one winning ticket exists.

Front

What is the probability of an event that cannot happen?

Back

The probability of an event that cannot happen is 0.

Front

What is the probability of an event that is certain to happen?

Back

The probability of an event that is certain to happen is 1.