mathematics

Mary D. Sammel

Mary D. Sammel is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Mary D. Sammel rather than just read about it. In short: Mary Dupuis Sammel is a biostatistician, who works as a professor in the Department of Biostatistics and Epidemiology in the Perelman School of Medicine at the University of Pennsylvania. As well as doing research on theoretical statistics[JRSS] and reproductive health,[JAMA][OG][AGP] she also raises guide dogs and has published research on their upbringing.[PNAS] Education and career Sammel graduated from the Unive…

Key takeaways

Mary D. Sammel belongs to mathematics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Mary D. Sammel to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Mary D. Sammel from memory before moving on to harder problems.

Reference excerpt

Mary Dupuis Sammel is a biostatistician, who works as a professor in the Department of Biostatistics and Epidemiology in the Perelman School of Medicine at the University of Pennsylvania. As well as doing research on theoretical statistics[JRSS] and reproductive health,[JAMA][OG][AGP] she also raises guide dogs and has published research on their upbringing.[PNAS]

Education and career Sammel graduated from the University of Michigan in 1986 with a bachelor's degree in statistics and completed a master's degree in applied statistics in 1988 at the same university. She did her doctoral studies at the Harvard School of Public Health, completing a Sc.D. in biostatistics in 1995.

Work with guide dogs Sammel and her family have been active at fostering future guide dogs, from infancy through puppyhood until they are ready to go on to more intensive training with The Seeing Eye as a guide dog. With a student, Emily Bray, Sammel studied the effects of dogs' mothers' behavior on the dogs. Their work showed that dogs with overly-attentive mothers tended to be less effective as guide dogs, and less successful at completing guide dog training.[PNAS]

Recognition In 2015, Sammel was elected as a Fellow of the American Statistical Association.

Selected publications

References

Worked examples

Example 1 — a first encounter with Mary D. Sammel

Start with the simplest possible case. Write down what Mary D. Sammel claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Mary D. Sammel before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Mary D. Sammel ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Mary D. Sammel

In research: Mary D. Sammel appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Mary D. Sammel in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Mary D. Sammel is common in secondary-school and first-year university syllabi. It links to neighbouring topics American statisticians, Biostatisticians, Fellows of the American Statistical Association, so understanding it makes those chapters shorter.
In everyday life: Look for Mary D. Sammel outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Mary D. Sammel in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Mary D. Sammel means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Mary D. Sammel out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mary D. Sammel in simple terms?

Why does Mary D. Sammel matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Mary D. Sammel?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Mary D. Sammel.