how do you find the lower class limit,upper class limit, class width, class midpoint, and class boundaries from a set of frequencies data
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2 answers

Sort out the data in increasing order.
If there are n pieces of data, calculate nc=√n to be the number of classes. Round up to the next integer if necessary.
Find class width by dividing n by nc. Again round up to the next integer if necessary.
Start the first class with the smallest value (or smallest value 1) and increment each class start point by adding class width to the previous. 👍
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