Data Cycle Practice

Front

What is a representative sample?

Back

A representative sample is a subset of a population that accurately reflects the characteristics of the whole population.

Front

What is bivariate data?

Back

Bivariate data involves two different variables and is used to determine the relationship or correlation between them.

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for typically two variables for a set of data, showing how much one variable is affected by another.

Front

What does correlation mean in data analysis?

Back

Correlation refers to a statistical relationship between two variables, indicating how one may change in relation to the other.

Front

What is the purpose of surveying a population?

Back

The purpose of surveying a population is to gather data and insights about the preferences, behaviors, or characteristics of that population.

Front

What is the importance of random sampling?

Back

Random sampling ensures that every individual in a population has an equal chance of being selected, reducing bias and improving the validity of results.

Front

How can you determine the trend in a scatterplot?

Back

The trend in a scatterplot can be determined by observing the direction of the data points; whether they slope upwards, downwards, or show no clear pattern.

Front

What is the significance of a trend line in data analysis?

Back

A trend line is used to represent the general direction of data points in a scatterplot, helping to visualize the relationship between variables.

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical values that can be measured.

Front

What is the role of hypothesis in data collection?

Back

A hypothesis is a testable statement that predicts the relationship between variables, guiding the data collection process.