Below is a histogram for the number of days that it took Wyche Accounting to perform audits in the last quarter of last year. What is the frequency of the 25-28 bin? 
Definitions:
Quantity Produced
The total number of units of a product made by a business within a specific period.
Inputs
All the resources that go into a business.
Raw Materials
Basic substances in their natural, modified, or semi-processed state, used as inputs to a production process for manufacturing, finishing, or fabrication.
Producing Product
The process of creating, manufacturing, or assembling goods and services for sale to consumers.
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