MATH 1P98 Chapter 5&6: Chapter 5 &6.docx

• School: Brock University
• Department: Mathematics and Statistics
• Course: MATH 1P98
• Professor: Lorna Deeth

Document Summary

Binomial probability distribution: the procedure must have a fixed number of trials, the trials must be independent. ( the outcome of any trial doesn"t affect another, each trial must have all outcomes classified into two categories ( success and failure, the probability of a success remains the same in all trials. Why sample with replacement: when selecting a relatively small sample from a large population, it makes no significant difference whether we sample with replacement or without replacement, sampling with replacement results in independent events that are unaffected by previous outcomes, and independent events are easier to analyze and result in simpler calculation and formulas. The distribution of x is approximately a normal distribution with these paramaters: For n<30: the distribution of x cannot be approvimated well by a normal distribution and the methods of this section do not apply.