Your reading material explains how a company like smucker's can use as an aid in quality control a. frequency distribution b. line graphs c. trimodal distribution d. quarterly sales figures

Frequency Distribution

Explanation:

Quality control simply means a way of controlling the quality of  any given product by making sure that it meets specific requirement of customers, clients or company.

frequency distribution shows the number of times an event occurs.  

Frequency distribution aids in quality control by showing the variation in product that is quality controlled and the ones that are not.

answer; manager working long hours; plz check i believe this is correct good luck;