Q40. - Algebra 2

Question

Use the table that shows the number of people below the poverty level for the period 1980-1998.

 Draw a scatter plot.

Step-by-Step Solution

Answer

The scatter plot for number of people below the poverty level for the period 1980-1998 is provided below.

Step-1 – Apply the concept of scatter plot

A scatter plot (also known as a scatter diagram) is a two-dimensional graph that depicts a set of data. On the graph, each x/y variable is represented by a dot or a cross.

 

This chart can be used to visually show distributions or to visually describe correlations (correlation) between two numerical values.

Step-2 – Find the ordered pairs

Consider the tabulated data for number of people below the poverty level for the period 1980-1998.

The ordered pairs that represent number of people in the given year are provided below.

$\left(1980,29.3\right),\left(1985,33.1\right),\left(1990,33.6\right),\left(1995,36.4\right),\left(1998,34.5\right)$.

Step-3 –Plot the ordered pairs

Label the x-axis as year and y-axis as people (millions).

Plot the ordered pairs $\left(1980,29.3\right),\left(1985,33.1\right),\left(1990,33.6\right),\left(1995,36.4\right),\left(1998,34.5\right)$.

The scatter plot of the data is provided below.