frequency( data_array, bins_array )
Uses the bin array to create groups bounded by the elements of the array.
Keyword  Type  Description 


Decimal Array 
The set of numbers that will be divided into groups according to bins_array and then counted 

Decimal Array 
The upper (and inclusive) boundaries of the groups into which the elements from the data array will be dispersed. 
Integer Array
The bins_array argument also defines one additional group capturing all numbers greater than the maximum number in bins_array.
The return value represents how many elements from the data array fall into each of these groups.
For example, a bin array equal to {70, 79, 89}
defines four groups:
frequency({64,74,75,84,85,86,95},{70,79,89})
returns 1*2*3*1