According to Article 1 of the Constitution, how many representatives there are in Congress is determined by each state's population. A census is taken every 10 years to accurately apportion a state's representatives. The most basic calculation is there is to be one representative for every 30,000 residents. If there are not 30,000 people living in a state, that state will still get at least one representative.
Find the Class Width of the Frequency Table. The lower limit for every class is the smallest value in that class. On the other hand, the upper limit for every class is the greatest value in that class. The class width is the difference between the upper or lower class limits of consecutive classes. All classes should have the same class width. In this case, class width equals to the difference between the lower limits of the first two classes. Simplify to find that the class width is .
The lower class limit is 400. The upper class limit is 499. Class Boundaries. Class Boundaries are the midpoints between the upper class limit of a class and the lower class limit of the next class in the sequence. Therefore, each class has an upper and lower class boundary. Example: Using the frequency table above, determine the class boundaries of the first three classes. For the first class, 200 â 299. The lower class boundary is the midpoint between 199 and 200, that is 199.5. The upper class boundary is the midpoint between 299 and 300, that is 299.5.