Questions: The data to the right represent the top speed (in kilometers per hour) of all the players (except goaltenders) in a certain soccer league. Find (a) the number of classes, (b) the class limits for the third class, and (c) the class width. Speed (km/hr) Number of Players --- --- 10-14.9 4 15-19.9 10 20-24.9 39 25-29.9 353 30-34.9 198 (a) There are classes. (Type a whole number.)

The data to the right represent the top speed (in kilometers per hour) of all the players (except goaltenders) in a certain soccer league. Find (a) the number of classes, (b) the class limits for the third class, and (c) the class width.

Speed (km/hr) Number of Players
--- ---
10-14.9 4
15-19.9 10
20-24.9 39
25-29.9 353
30-34.9 198

(a) There are classes.
(Type a whole number.)

Transcript text: The data to the right represent the top speed (in kilometers per hour) of all the players (except goaltenders) in a certain soccer league. Find (a) the number of classes, (b) the class limits for the third class, and (c) the class width. \begin{tabular}{cc} \hline Speed $(\mathbf{k m} / \mathbf{h r})$ & Number of Players \\ \hline $10-14.9$ & 4 \\ $15-19.9$ & 10 \\ $20-24.9$ & 39 \\ $25-29.9$ & 353 \\ $30-34.9$ & 198 \end{tabular} (a) There are $\square$ classes. (Type a whole number.)

Solution

Solution Steps

Step 1: Finding the Number of Classes

Given the dataset, the number of classes is determined by counting the distinct ranges listed. In this case, there are ^5^ classes.

Step 2: Finding Class Limits

For the specified class (class 3), the ^lower class limit^ is identified as the smallest value in the specified class range, which is ^20^. Similarly, the ^upper class limit^ is the largest value in the specified class range, which is ^24.9^.

Step 3: Finding Class Width

The class width is found by subtracting the lower limit of the class from the upper limit of the same class. For the specified class (class 3), the calculation is ^24.9 - 20 = 4.9^.