Me and ill mark branilest for first person to answer correctly. a histogram is being made for the following list of data. if the length of each interval is going to be 5, what will be the frequency of the second interval? 78, 92, 98, 87, 86, 72, 92, 81, 86, 92 a.1 b.2 c.3 d.4

So to put them in intervals of 5 you would have:
70-74
75-79
80-84
85-89
90-94
95-99
In these intervals you would have:
70-74: 72
75-79: 78
80-84: 81
85-89: 86, 86, 87
90-94: 92, 92, 92
95-99: 98

The second interval is 75-79 where there is only one number. Therefore the frequency will be 1.
The correct answer is A. Hope this helps! :)