# Resource Library

#### Statistical Topic

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• ### Sampling distribution of the mean

This FLASH based applet illustrates the sampling distribution of the mean. This applet allows the user to pick a population from over 2000 pre-defined populations. The user can then choose size of the random sample to select. The applet can produce random samples in one, 10, 100, or 1000 at a time. The resulting means are illustrated on a histogram. The histogram has an outline of the normal distribution and vertical lines at 1, 2, and 3 standard deviations. The applet can be viewed at the original site or downloaded to the instructors machine.
• ### Song: Birthday Song

Song addresses the famous probability example of Birthday Problem by contrasting the often confused events of "some people matching" with "someone matches with ME". May be sung to the tune of "Happy Birthday to You" (Mildred J. Hill and Patty Smith Hill). Originally appeared in Winter 2002 "STATS". Recorded June 26, 2009 at the OSU Whisper Room: Larry Lesser, vocals/guitar; Justin Slauson, engineer.
• ### Song: Probability Man

Song of a student forging a commitment to learn major concepts and tools of mathematical probability. May be sung to the tune of "Mr. Tambourine Man" (Bob Dylan).
• ### Song: Oh Normal Curve

Song relates basic facts (e.g., its parameters and symmetry) about normal curve and standardized z-scores. May be sung to the tune of "Oh Christmas Tree" (traditional). Musical accompaniment realization and vocals are by Joshua Lintz from University of Texas at El Paso.
• ### Video: Statz Rappers

This video is a humorous refresher of statistics methodology. This rap video presents a parody with statistical references. It is quite entertaining.
• ### Selective Attention: Gorilla Video

This video is an example of what is known in psychology as selective attention. When a person is instructed to only focus on the number of times a ball is passed between players wearing a white shirt it is sometimes difficult to see what else is going on.