7th grade statisitics

Front

What is statistics?

Back

Statistics is the study of collecting, analyzing, interpreting, presenting, and organizing data.

Front

What is a sample in statistics?

Back

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

Front

What does biased sample mean?

Back

A biased sample is one that does not accurately represent the population from which it is drawn.

Front

What is the purpose of a survey?

Back

A survey is used to gather information from a group of people to understand their opinions, behaviors, or characteristics.

Front

What is the mean in statistics?

Back

The mean is the average of a set of numbers, calculated by adding all the values and dividing by the number of values.

Front

What is the median?

Back

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

Front

What is the mode?

Back

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

Front

What is a quartile?

Back

A quartile is a type of quantile that divides a data set into four equal parts.

Front

What is the upper quartile?

Back

The upper quartile (Q3) is the median of the upper half of a data set, representing the 75th percentile.

Front

How do you calculate percentage?

Back

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