Question

Based on the course textbook, what are the basic rules for creating a regular and grouped frequency distribution table? Why are these rules in place? Explain.

Answer 1

Following are the rules for creating a regular and grouped frequency distribution table

• Find the largest and smallest values
• Compute the Range = Maximum - Minimum
• Select the number of classes desired.Generally 5 or less than 20
• Find the class width by dividing the range by the number of classes and rounding up to whole number.
• Pick up a suitable starting point less than or equal to the minimum value. Your starting point is the lower limit of the first class. Add the class width to this lower limit to get the rest of the lower limits.
• To find the upper limit of the first class, subtract one from the lower limit of the second class. Then continue to add the class width to this upper limit to find the rest of the upper limits.
• Tally the data.
• Find the frequencies.

There rules are guidelines and not the absolute requirement they will help to produse weel informed frequency ditribution table