Hotmath Practice Problems

The following data represents the ages of the teachers at Pinkwater High School.

{24, 27, 29, 32, 34, 37, 45, 51, 52, 56, 57, 61}

Use your graphing calculator to create a histogram for this data, to show how many teachers there are in their 20s, 30s, etc.

Nine individuals were asked their ages and the number of biological children they had. Use your graphing calculator to make a scatter plot of the data.

Use your calculator to make a box–and–whisker plot of the following data.

0.7, 1.2, 1.4, 1.55, 1.75, 1.9, 1.9, 1.9, 2.1, 2.6, 3.1

Use your calculator to make a box–and–whisker plot of the following data.

15, 27, 33, 38, 41, 44, 59, 77, 81, 103, 141, 162

The following data represents the median income of a 4–person family in the U.S.A. from 1998 to 2002.

Use your graphing calculator to make a scatter plot of the data. Connect the points of the scatter plot.

The following data shows U.S. Military Spending from 1998 to 2002.

Use your graphing calculator to make a scatter plot of the data. Connect the points of the scatter plot.

Plot the set of data points below. Determine whether to use a linear, quadratic, or exponential regression equation. Find the regression equation and graph it.

(0.2, 28), (0.3, 20), (0.5, 11), (1.1, 3), (1.3, 2), (1.8, 1)

Plot the set of data points below. Determine whether to use a linear, quadratic, or exponential regression equation. Find the regression equation and graph it.

(10, 551), (20, 518), (30, 486), (50, 420), (90, 293), (120, 202)

Plot the set of data points below. Determine whether to use a linear, quadratic, or exponential regression equation. Find the regression equation and graph it.

(1.25, 5.9), (1.75, 9.9), (2.25, 16.3), (3, 26.2), (3.75, 48.1), (5, 77.0), (6.75, 141.5)

The table gives the points scored by the Malcolm X High School basketball team and the Ernesto Guevara High School basketball team in their first ten games. Plot the two sets of ordered pairs on your calculator, and connect the points of each team to show the relative progress of their game through the season.