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  2. Simple random sample - Wikipedia

    en.wikipedia.org/wiki/Simple_random_sample

    For example, suppose N college students want to get a ticket for a basketball game, but there are only X < N tickets for them, so they decide to have a fair way to see who gets to go. Then, everybody is given a number in the range from 0 to N -1, and random numbers are generated, either electronically or from a table of random numbers.

  3. Classical conditioning - Wikipedia

    en.wikipedia.org/wiki/Classical_conditioning

    Classical conditioning occurs when a conditioned stimulus (CS) is paired with an unconditioned stimulus (US). Usually, the conditioned stimulus is a neutral stimulus (e.g., the sound of a tuning fork), the unconditioned stimulus is biologically potent (e.g., the taste of food) and the unconditioned response (UR) to the unconditioned stimulus is an unlearned reflex response (e.g., salivation).

  4. Vandalism - Wikipedia

    en.wikipedia.org/wiki/Vandalism

    Examples of vandalism include salting lawns, cutting trees without permission, egg throwing, breaking windows, arson, spraying paint on others' properties, tagging, placing glue into locks, tire slashing, keying (scratching) paint, ransacking a property, flooding a house by clogging a sink and leaving the water running, and pulling up plants ...

  5. Simple module - Wikipedia

    en.wikipedia.org/wiki/Simple_module

    Z-modules are the same as abelian groups, so a simple Z-module is an abelian group which has no non-zero proper subgroups.These are the cyclic groups of prime order.. If I is a right ideal of R, then I is simple as a right module if and only if I is a minimal non-zero right ideal: If M is a non-zero proper submodule of I, then it is also a right ideal, so I is not minimal.

  6. Exercise Plan for Seniors: Strength, Stretching, and Balance

    www.healthline.com/health/everyday-fitness/...

    If you're in good health and 65 or older, it's wise to perform moderate-intensity exercise for two and a half hours each week. Here are some suggestions to help you get started.

  7. Python (programming language) - Wikipedia

    en.wikipedia.org/wiki/Python_(programming_language)

    Slice indexes may be omitted—for example, a [:] returns a copy of the entire list. Each element of a slice is a shallow copy. In Python, a distinction between expressions and statements is rigidly enforced, in contrast to languages such as Common Lisp, Scheme, or Ruby. This leads to duplicating some functionality. For example:

  8. CDATA - Wikipedia

    en.wikipedia.org/wiki/CDATA

    This technique is only necessary when using inline scripts and stylesheets, and is language-specific. CSS stylesheets, for example, only support the second style of commenting-out (/* … */), but CSS also has less need for the < and & characters than JavaScript and so less need for explicit CDATA markers.

  9. Web page - Wikipedia

    en.wikipedia.org/wiki/Web_page

    Cascading Style Sheets (CSS) specify the presentation of the page. [3] CSS rules can be in separate text files or embedded within the HTML file. The vast majority [4] of pages have JavaScript programs, enabling a wide range of behavior. [3] The newer WebAssembly language can also be used as a supplement. [5]