Organizing and Visualizing Data and Measures of Central Tendency

1. Organizing and Visualizing Data and Measures of Central Tendency

2. The final letter grades of students at a local college in Spanish are written below. Organize the given data into a frequency distribution.

3. The speeds, in miles per hour, of 20 randomly monitored cars on Interstate 20 near Winona, Arizona were as follows: Organize the given data into a frequency distribution. (Group the data into six intervals.)

4. The speeds, in miles per hour, of 40 randomly monitored cars on Interstate 40 near Winona, Arizona were as follows: Create a stem-and-leaf plot for the speed data.

5. Formulas mean of ungrouped data (here xis the data point) mean of grouped data (here x is the midpoint of a group)

6. Tom Ball, an avid jogger, kept detailed records of the number of miles he ran per week during the past six months. The frequency distribution summarizes his records. Find the mean, median, and mode of the number of miles per week that Tom ran. Draw a box and whiskers plot of the data.