Data Analysis EOC (2024)

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that displays the median, quartiles, and potential outliers. It shows the distribution of the data and helps identify its central tendency and variability.

Front

What does the interquartile range (IQR) represent in a data set?

Back

The interquartile range (IQR) is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set. It measures the spread of the middle 50% of the data.

Front

What is the mean of a data set?

Back

The mean is the average of a data set, calculated by adding all the numbers together and dividing by the total count of numbers.

Front

How does increasing every number in a data set by a constant affect the mean?

Back

Increasing every number in a data set by a constant increases the mean by that same constant.

Front

What is a scatterplot?

Back

A scatterplot is a graph that displays values for two variables for a set of data. It shows the relationship between the variables and can indicate correlation.

Front

What does correlation mean in data analysis?

Back

Correlation refers to a statistical relationship between two variables, indicating how one variable may change in relation to another. It can be positive, negative, or zero.

Front

What is the range of a data set?

Back

The range is the difference between the maximum and minimum values in a data set, indicating the spread of the data.

Front

What is a linear function?

Back

Front

What is the standard deviation?

Back

Standard deviation is a measure of the amount of variation or dispersion in a set of values. A low standard deviation indicates that the values tend to be close to the mean.

Front

What is the purpose of using a box plot?

Back

Box plots are used to visually summarize the distribution of a data set, highlighting the median, quartiles, and potential outliers.