In comparing the frequency tables with grouped frequency tables for the same set of data, which of these would be true?

a. If data covers a wide range of possible values, the grouped frequency table will be easier to decipher

b. Depending on the width of class intervals, it is possible that some scores may not be counted in a grouped frequency table.

c. The total frequency for the grouped frequency total will exceed that of a frequency table because of overlapping of class intervals.

d. It is generally harder to spot patterns when using a grouped frequency table.