Alg1B - Statistics and Probability - review

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 formula for calculating the mean (average)?

Back

Mean = (Sum of all values) / (Number of values)

Front

What is the definition of mode in statistics?

Back

Mode is the value that appears most frequently in a data set.

Front

How do you convert a decimal to a percent?

Back

Multiply the decimal by 100 and add a percent sign.

Front

What is the definition of median?

Back

Median is the middle value in a data set when the numbers are arranged in order.

Front

What does it mean if an event has a probability of 0%?

Back

It means the event is impossible and will not occur.

Front

What does it mean if an event has a probability of 100%?

Back

It means the event is certain and will definitely occur.

Front

How do you find the range of a data set?

Back

Range = (Maximum value) - (Minimum value)

Front

What is a sample in statistics?

Back

A sample is a subset of a population used to represent the whole population.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical values.