STATISTICS Review for Algebra

Front

What is the range of a data set?

Back

The range is the difference between the highest and lowest values in a data set.

Front

What percent of students have heights between 60 inches and 66 inches if 75% is the answer?

Back

75% of students have heights between 60 inches and 66 inches.

Front

What does a perfect positive correlation coefficient of 1 indicate?

Back

It indicates that as one variable increases, the other variable also increases perfectly.

Front

What is the interquartile range (IQR)?

Back

The IQR is the difference between the first quartile (Q1) and the third quartile (Q3) in a data set.

Front

What percent of people are between 60 and 62 inches tall if the answer is 25%?

Back

25% of people are between 60 and 62 inches tall.

Front

Define 'mean' in statistics.

Back

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

Front

What is 'median' in a data set?

Back

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

Front

What does 'mode' refer to in statistics?

Back

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

Front

Explain what a 'box plot' represents.

Back

A box plot visually represents the distribution of a data set, showing the median, quartiles, and potential outliers.

Front

What is a 'scatter plot'?

Back

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