NRES 421

Spring 2026 All Classes

All Classes

Quantitative Methods in NRES

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Credit: 3 hours.

Explores the fundamental principles, procedures, and practices that underlie the most common statistical and sampling methods used in natural resources and environmental sciences. This course covers hypothesis testing, regression, and analysis of variance. There is also a strong focus on sampling theory and experimental design. Computer labs utilize the open source R statistical computing environment.

3 undergraduate hours. 3 graduate hours. Prerequisite: One of MATH 220, MATH 221, MATH 234; completion of the statistics requirement.

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NRES 421 class schedule data for spring 2026
CRN	Type	Section	Time	Day	Location	Instructor	Section Details
35120	Laboratory	AB1	9:00AM -10:50AM	R	ARR ACES Lib, Info & Alum Ctr	Yannarell, T	Part of Term: 1 Date Range: 01/20/26-05/06/26
35123	Laboratory	AB2	11:00AM -12:50PM	R	ARR ACES Lib, Info & Alum Ctr	Yannarell, T	Part of Term: 1 Date Range: 01/20/26-05/06/26
77084	Online Lab	AB3	ARRANGED	n.a.	n.a.	Yannarell, T	Part of Term: 1 Date Range: 01/20/26-05/06/26 Special Approval: Departmental Approval Required Section Info: The online laboratory is open to seniors who must also take NRES 456 and either NRES 407 or NRES 420 which causes a time conflict with both in-person labs. Students in this section will watch a recording of an in-person section.
35125	Lecture-Discussion	AE1	12:00PM -12:50PM	MW	2 Education Building	Yannarell, T	Part of Term: 1 Date Range: 01/20/26-05/06/26 Section Info: Register for the lecture-discussion and one lab section. If all seats are full, complete the form at http://go.illinois.edu/NRESwaitinglist to be added to the waiting list. Restriction(s): Restricted to students with Junior, Senior, or Graduate class standing.