Statistics Unit Review

Front

What is the range in statistics?

Back

The range is the difference between the largest and smallest values in a data set.

Front

What kind of correlation indicates that as one variable increases, the other variable also increases?

Back

Positive correlation.

Front

What is the mode in a data set?

Back

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

Front

What does a box and whisker plot represent?

Back

A box and whisker plot visually displays the distribution of data based on a five-number summary: minimum, first quartile (Q1), median, third quartile (Q3), and maximum.

Front

What is a negative correlation?

Back

A negative correlation indicates that as one variable increases, the other variable decreases.

Front

What is the median in a data set?

Back

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

Front

What is a quartile in statistics?

Back

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

Front

What does the first quartile (Q1) represent?

Back

The first quartile (Q1) represents the median of the lower half of the data set.

Front

What is the interquartile range (IQR)?

Back

The interquartile range (IQR) is the difference between the third quartile (Q3) and the first quartile (Q1), representing the middle 50% of the data.

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables.