Iowa is an agricultural state with a large number of rivers. The use of chemical pesticides and increasing size of livestock herds has created a concern for the water quality in the state. A researcher recently surveyed the rivers of Iowa and analyzed the concentrations of certain chemicals at different locations in the watersheds of Iowa. The cumulative relative frequency plot below displays the distribution of Nitrogen concentrations along the Cedar River. 
(a)Approximately what percent of the Nitrogen concentration measurements are less than 10 mg/L?
(b)Approximately what percent of the Nitrogen concentration measurements are 12 mg/L or more?
(c)50% of the Nitrogen concentration measurements lie below what approximate value?
Definitions:
Distributed Team
A group of individuals who work together from different geographical locations, leveraging technology to communicate and collaborate.
Virtual Team
A group of individuals who work together from various geographic locations and rely on communication technology to collaborate.
Team Building
The action or process of encouraging members of a group to increase their cooperation, communication, and collaboration to enhance team performance.
Self-managing Teams
Groups that operate without direct supervision, assuming responsibility for managing their work and processes.
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