Data Analysis 5.9C

Front

What is a stem-and-leaf plot?

Back

A stem-and-leaf plot is a method of displaying quantitative data in a graphical format, similar to a histogram, to retain the original data values while showing their distribution.

Front

How do you find the total from a stem-and-leaf plot?

Back

To find the total, add the values represented by the leaves for the stems that meet the criteria (e.g., more than 90).

Front

What is a fraction?

Back

A fraction represents a part of a whole and is expressed as 'part/whole'.

Front

How do you simplify a fraction?

Back

To simplify a fraction, divide both the numerator and the denominator by their greatest common divisor (GCD).

Front

What is a dot plot?

Back

A dot plot is a statistical chart that consists of dots representing the frequency of data points along a number line.

Front

How do you calculate the total from a dot plot?

Back

To calculate the total, count the number of dots for each value and multiply by the value represented, then sum all the products.

Front

What is a scatterplot?

Back

A scatterplot is a graph that shows the relationship between two quantitative variables, with one variable plotted along the x-axis and the other along the y-axis.

Front

How do you interpret a scatterplot?

Back

To interpret a scatterplot, look for patterns, trends, or correlations between the two variables, such as positive, negative, or no correlation.

Front

What is a bar graph?

Back

A bar graph is a chart that presents categorical data with rectangular bars representing the frequency or value of each category.

Front

How do you read a bar graph?

Back

To read a bar graph, look at the height or length of each bar to determine the value it represents for each category.