VOCAB
*Refer to week 2 notes and vocab for related topics and explanation
Relative Frequency- Find by dividing class frequency by the total sum of all
frequencies.
Cumulative frequency- Find by adding all the frequencies together.
Class boundary- The highest and lowest class range added and subtracted by .5. For
example, if the class range is 10-19, then the class boundary is 9.5-19.5
Class Width- Range divided by total number of classes
Class limit- The largest number a value can be within a class. For example, if the class
range is 10-19, then the class limit is 19.
Class Frequency- The number of data points in a certain range of limits. For example, if
your class interval is 10-19, and there are 3 data values that are within that range, then
your frequency is 3.
Midpoint- Like a Median for a class interval, where you add the lower limit and the
upper limit, then divide by 2 for your midpoint.
*Refer to week 2 notes and vocab for related topics and explanation
Relative Frequency- Find by dividing class frequency by the total sum of all
frequencies.
Cumulative frequency- Find by adding all the frequencies together.
Class boundary- The highest and lowest class range added and subtracted by .5. For
example, if the class range is 10-19, then the class boundary is 9.5-19.5
Class Width- Range divided by total number of classes
Class limit- The largest number a value can be within a class. For example, if the class
range is 10-19, then the class limit is 19.
Class Frequency- The number of data points in a certain range of limits. For example, if
your class interval is 10-19, and there are 3 data values that are within that range, then
your frequency is 3.
Midpoint- Like a Median for a class interval, where you add the lower limit and the
upper limit, then divide by 2 for your midpoint.
