STAT 200 Study Guide - Final Guide: Summary Statistics, Marginal Distribution, Type I And Type Ii Errors

• School: UBC
• Department: Statistics
• Course: STAT 200
• Professor: Eugenia Yu

Document Summary

For questions 1 24, circle one answer only. If making an error, write your nal answer clearly in the margin. Ambiguous responses will be considered incorrect: the mean age of ve people in a room is 30 years. One of the people whose age is 50, leaves the room. The mean age of the remaining people is 25 years. F: for a normal distribution, the rst and third quartiles are respectively one standard deviation below and above the mean. F: a correlation coecient based on a scatter plot measures the proportion of data lying on the regression line. F: a phonein poll at a radio station concluded that 70% of canadians approve of stephen harper, based on the responses of 8,000 callers. The conclusion is valid since the sample size is large. F: a random sample of 100 students are asked if they are vegetarians.