Suggested here is a simple graphical method for studying the goodness of fit in Cox's regression model for survival data. The method is easy to use, as it does not require the estimation of ...

In this article Gomory's method of solution of integer linear programming problems is described briefly (with an example of the method of solution). The bulk of the paper is devoted to a discussion of ...

Considering the growth, job possibilities, and interest among students, Harvard University is offering free courses on Data Science. Check the list of 9 free courses here.

Learn the key components of the cash flow statement, how to analyze and interpret changes in cash, and what improved free cash flow means to shareholders.

A simple random sample is a subset of a statistical population where each member of the population is equally likely to be chosen.

Reprint: R0411J In the classroom, activity-based costing (ABC) looks like a great way to manage a company’s limited resources. But executives who have tried to implement ABC in their ...

Interpersonal psychotherapy is a time-limited, focused, and evidence-based approach to treat mood disorders. The main goal of IPT is to improve the quality of a client’s interpersonal ...

Software engineering is the branch of computer science that deals with the design, development, testing, and maintenance of software applications. Software engineers apply engineering principles and ...

Understand what thyroid disease is, how your thyroid works, and how hormone imbalances like hypothyroidism and hyperthyroidism affect your body.