Textbook Notes (368,463)
Psychology (1,112)
PSYC 202 (19)
Chapter

# Probability.docx

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School
Department
Psychology
Course
PSYC 202
Professor
Ronald R Holden
Semester
Fall

Description
Probability For a situation in which several different outcomes are possible the probability for any specific outcome is defined as a fraction or proportion of all the possible outcomesThe probability of a specific outcome is expressed with p followed by the specific outcome in brackets eg pheadsCan restate any probability problem as a proportion problem and vice versaUsually concerned with the probability of obtaining a particular sample from a populationProbability values most often expressed as decimals but fractions and percentages also appropriateAll probability values are contained in a range from 0 to 1 100 Independent random sampling is required for this definition of probability to be accurateRandom sample each individual in the population has an equal chance of being selectedIndependent random sample each individual in the population has an equal chance of being selected and the probability of being selected stays constant from one selection to the next o To make sure the probability of being selected stays constant you must return each individual to the population before making the next s
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