7th Grade Statistics & Probability Practice

Front

What is the definition of a sample in statistics?

Back

A sample is a part of a group being surveyed, used to represent the whole population.

Front

What is the median of a set of numbers?

Back

The median is the middle value when a data set is ordered from least to greatest.

Front

How do you find the percent of data within a specific range?

Back

To find the percent of data between two values, divide the number of data points in that range by the total number of data points and multiply by 100.

Front

What does it mean for an event to be unlikely but not impossible?

Back

An unlikely event has a low probability of occurring, but it can still happen.

Front

What is the definition of a population in statistics?

Back

A population is the entire group of individuals or items that we want to study.

Front

What is a quartile?

Back

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

Front

How do you calculate the mean of a set of numbers?

Back

To calculate the mean, add all the numbers together and divide by the total count of numbers.

Front

What is the difference between qualitative and quantitative data?

Back

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

Front

What is a 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 a random sample?

Back

A random sample is a subset of a population chosen in such a way that every member has an equal chance of being selected.