PSYC 1010 Lecture Notes - Lecture 6: Squared Deviations From The Mean, Standard Deviation, Shyness

• School: University of Guelph
• Department: Psychology
• Course: PSYC 1010
• Professor: Lana Trick

Document Summary

Researchers had invented a test of shyness, and they wanted to find out how people generally do on the test because their goal was to create norms-- expected values for the population. In cases such as these, they typically measure larger numbers for the participants, but lets say they measyred 4. here are the results. S=root (866. 67) --------- > this is the variance (variance=866. 67) The standard deviation for the sample is 29. 44. **standard deviation means typical difference between each score and the mean is 29. 44. Squared to get rid of the negatives, then unsquare it. How far up do you live from the town you were born in. Surveyed 1000 people and they learned that people lived anywhere from 62 to 283 miles from where they were born. Range= 221: add one to range = 221 + 1 = 222 n=1000. 2. divide by 10 because you want to get around 10 categories.