PSYC37H3 Chapter Notes - Chapter 2: Kelvin, Sat, Binomial Distribution
Document Summary
Others: through sets of well-de ned rules, we can use numbers to learn more about the world. Chapter 2: norms and basic statistics for testing: one advantage of number systems is that they allow us to manipulate information, tests are devices used to translate observations into numbers. Properties of scales: three important properties make scales of measurement different from another: magnitude, equal intervals, and an absolute 0. If it did, then the 0 point would be more meaningful. Because the scale does not have an absolute. 0, we cannot make statements in terms of ratios. N = 18, mean = 33. 78, standard deviation = 42. 99 the sample with infant morality rates greater than in the united states. Steps: arrange data in ascending order that is, lowest score rst, the second lowest score second, and so on, determine the number of cases with worse rates than the score of interest.
