Statistics Building

Welcome to the Department of Statistics at Colorado State University. Statistics is the science of inferring knowledge from data and describing uncertainty in those inferences. It plays a central role in scientific research, social policy, and governance. The Department of Statistics has a world-class record of success in education, research and service and has an out-sized impact on campus because of its engagement in educating students in all disciplines and interdisciplinary research.


Department Highlights

Professor Andee Kaplan Receives NSF CAREER Grant

Andee Kaplan (PI) received NSF grant “CAREER: Flexible Record Linkage through Realistic Modeling of Dependent, Missing, and Updating Data.” Record linkage is the process of resolving duplicates in partially overlapping sets of records from noisy data sources without a unique identifier. This project will develop flexible Bayesian record linkage models to enable more accurate linking of data sets through development of flexible priors to incorporate dependence and account for realistic missingness. Additionally, this approach will allow for dynamic data via an updating querying framework for record linkage achieved through a novel filtering approach. This novel methodology will be applied to publicly available and Census Bureau data from the 19th century with identifying information about freedom seekers, captive individuals in the coastwise slave trade, and Black Americans in the Antebellum South. Official records of these individuals are fractured into many sources, each only giving a small glimpse in time. Applying the developed flexible Bayesian record linkage model, this research will reconstruct a fuller account of their lives through linking multiple noisy data sources. Graduate students will be mentored and software will be made publicly available.

2024 WNAR/IMS/Graybill Conference

The Department of Statistics will host the 2024 WNAR/IMS/Graybill Annual Meeting Sunday, June 9 through Wednesday, June 12. More information can be found here.

Piotr Kokoszka Selected as 2024 Professor Laureate

Professors Piotr Kokoszka (Statistics) and Olve Peersen (Biochemistry and Molecular Biology) have been recognized by the College of Natural Sciences as 2024 Professor Laureates.
The Professor Laureate Award is the college’s highest academic honor, bestowed upon dedicated faculty with outstanding contributions to the missions of research, teaching, mentoring and outreach. The designation is intended to honor recipients and to provide the college with exceptional role models. The title is held for three years and includes an honorarium and two years of research funding.

Workshop on Bayesian analysis of environmental data

September 18-20, 2023, our department will host a workshop on complex environmental data. Its aim is to provide researchers in  Bayesian, environmental and ecological statistics with a venue to share cutting-edge advances and spark deeper knowledge gains. The workshop will facilitate  the transfer of knowledge between research sub-communities, fostering collaboration, and encourage advances from the wider community of researchers in Bayesian analysis of complex datasets to percolate into the environmental domain. Details are available at

Professor Matt Koslovsky Receives an NSF Grant to Study High-Dimensional Data

Matt Koslovsky (PI) received NSF grant “Bayesian Sparse Dirichlet-Multinomial Models for Discovering Latent Structure in High-Dimensional Compositional Count Data” funded by the Division of Mathematical Sciences program “Computational and Data-Enabled Science and Engineering in Mathematical and Statistical Sciences.” Motivated by data generated by high-throughput sequencing technology in omics research, this research project will develop a novel sparse Dirichlet-multinomial (sDM) model that simultaneously accommodates potential zero inflation in multivariate compositional count data while estimating compositional probabilities. Extensions of the sDM modeling framework will be investigated for high-dimensional variable selection and clustering problems, and user-friendly software will be made publicly available. Graduate students will receive educational and professional training and mentoring.

Professor Kokoszka Receives the Neyman Medal

In recognition of his contributions to statistics, Professor Piotr Kokoszka received the Neyman Medal from the Polish Statistical Association in a ceremony in Warsaw, Poland. The ceremony took place in July during the annual conference of the Central Statistical Office of Poland. It was followed by a plenary lecture. The medal was established in 2012 to commemorate the one hundredth anniversary of the association and is awarded annually.

Jerzy Neyman was one of the founders of modern statistics and is best known for the introduction of the concepts of the confidence interval and stratified sampling and for his contributions to the theory of significance tests. After emigrating to the United States, he established the UC Berkley Department of Statistics where he worked until his retirement.


Upcoming Department Seminars,

Preliminary Exams,

& Ph.D. Defenses

Department Video Archive

Statistics Department Clubs & Organizations

Student Organized Activities and Research Seminars (SOARS)


Student Organized Activities and Research Seminars (SOARS) exists to encourage community and scholarship among graduate students in the statistics department and more broadly at Colorado State University.


See the SOARS website and full calendar of upcoming events here.

The Data Science and Statistical Learning Journal Club

The Data Science and Statistical Learning Journal Club

The Data Science and Statistical Learning Journal Club meets weekly to discuss papers and current work on topics relevant to data science and statistical learning. At the beginning of each semester, we will select a few interesting and latest manuscripts to study.

See the Data Science and Statistical Learning Journal Club website here.

Stat Alliance

CSU Stat Alliance

Stat Alliance is a student-led club welcome to all students with any level of interest or skill in statistics. Our meetings include hearing from guest speakers in the field of statistics,  making connections, social activities and much more!

See the Stat Alliance website and full calendar of upcoming events here.

Environmental Biostatistics Working Group

Environmental Biostatistics Working Group

The Environmental Biostatistics Working Group seeks to build collaboration and community among faculty and students working in biostatistics with application in environmental and public health.

See the Environmental Biostatistics Working Group website here.

Statistics Communication Group

Statistics Communication Group

The Statistics Communication Group is a student-led platform for communicating statistics research to the public. Graduate and undergraduate students conducting statistics research can submit a short explanation of their research for publication on the writing group’s blog.

See the blog page here for more details.


Department News

In memory: Peter Brockwell

Peter Brockwell passed away peacefully on July 5 in Melbourne, surrounded by his family. He was a faculty member in the Statistics Department for several decades, until his retirement, including an appointment as the department chair.

Likelihood of another fire season as bad as 2020 up to 10 times higher than it was 50 years ago, CSU research shows

The 2020 wildfire season may have been the worst in Colorado’s history, but if recent climate trends hold true, years like this could become more and more common. 

Statistics undergraduate summer research program culminates at CURC

For students studying statistics, undergraduate research is a valuable, hands-on chance to learn how to use statistics to support real research with real-world outcomes.

Washington County: Levi Kipp – Statistics

During the 2022-23 academic year, we are highlighting one Colorado State University student or alum from each of Colorado’s 64 counties. The Centennial State’s land grant university has a connection to the diverse lands and people from the counties of Moffat to Baca, Montezuma to Sedgwick and everywhere in between.