Frequency, Frequency Tables, and Levels of Measurement: example 1.17

Use the heights of the 100 male semiprofessional soccer players in Table 1.15. Fill in the blanks and check your answers.

1. The percentage of heights that are from 67.95–71.95 inches is ________.
2. The percentage of heights that are from 67.95–73.95 inches is ________.
3. The percentage of heights that are more than 65.95 inches is ________.
4. The number of players in the sample who are between 61.95 and 71.95 inches tall is ________.
5. What kind of data are the heights?
6. Describe how you could gather this data (the heights) so that the data are characteristic of all male semiprofessional soccer players.

Remember, you count frequencies. To find the relative frequency, divide the frequency by the total number of data values. To find the cumulative relative frequency, add all of the previous relative frequencies to the relative frequency for the current row.