Economics 2222A/B Lecture Notes - Lecture 2: Travis Moore, Simple Random Sample, Cumulative Frequency Analysis
20 Feb 2017
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Paste your work here so that we can collaborate on the questions and keep consistent formatting! 1-a) we are given the frequency for four classes of clients and must calculate the relative frequency and percentage by performing (frequency/n) and multiplying by 100 to get the percentage. (5/10)=0. 5. 1-b) to construct the cumulative frequency distribution we must alter add the frequencies of previous classes to the total of subsequent ones such that it accumulates until the entire sample is included. (5=5), (0+5=5), (2+0+5=7), (3+2+0+5=10) 1-c) we must repeat the same calculation performed in 1-a for the given cumilative frequencies: Simple random sampling is an attempt to select a sample of n objects from a population without influence any variable. Therefore for the population (5 ,6, 7) and sample size n=2 we can list all the possible samples and assume they have an equal likelihood of being selected: n=(5,6), n=(5,7), n=(6,7)
