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What is the mode of grouped and ungrouped data?
If you have calculated a histogram of your data, the mode is the interval with the highest relative frequency. If you have not created a histogram, and your dataset contains finite numbers (fixed decimal numbers), with some numbers repeating, then those numbers that repeat the most would be the mode. Otherwise, if you do not group your data, where you select an interval to calculate relative frequency, then a mode is not identifiable.
What are some methods of collecting data about local climate?
dew point relative humidity temperature all of the above
What makes a good chart in Excel?
A good chart is one that displays the information to present a picture that accurately reflects the relationship of each data item relative to the whole data set.
Would it be advantageous to group the data before constructing a frequency distribution?
The answer depends on the nature of the data and the domain. If the domain is continuous or very large relative to the number of observations, then it is very advantageous.
Why is a circle graph better?
That depends on the data you're trying to graph. Generally, circle graphs / pie charts / whatever you want to call them are good because they show pieces of data in proportion to the sum of all the data; that is, they illustrate the relative size of the pieces of data when compared to each other and compared to the whole.
