HW1-1 - d1 1 Descriptive Statistics and Graphs for PLACE...

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d 1 1. Descriptive Statistics and Graphs for PLACE Frequency Table for PLACE Relative Cumulative Cum. Rel. Class Value Frequency Frequency Frequency Frequency 1 Africa 5 0.1000 5 0.1000 2 America 15 0.3000 20 0.4000 3 Asia 24 0.4800 44 0.8800 4 Europe 6 0.1200 50 1.0000 The StatAdvisor This table shows the number of times each value of PLACE occurred, as well as percentages and cumulative statistics. For example, in 5 rows of the data file PLACE equaled Africa. This represents 10.0% of the 50 values in the file. The rightmost two columns give cumulative counts and percentages from the top of the table down.
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Barchart for PLACE 0 4 8 12 16 20 24 frequency {[} {\} {]} {^} {_} {`} Africa America Asia Europe d 2
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d 3
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d 4 2. Define one statistic from the data on PLACE and calculate it. - The mode is the category with the most occurrences. In this study, the mode is "Asia" because Asia holds the largest percentage of occurrences in the sample with 48%. - For Asia: = = . Frequency of AsiaNumber of all outcomes 2450 48 3. Describe the distribution of PLACE by referring to either or both graphs. The pie chart above graphically shows the geographical distribution of the 50 destructive earthquakes that were sampled. 10% of the sampled earthquakes occurred in Africa, 48% occurred in Asia, 30% occurred in America, and 12% of them occurred in Europe. 4. Produce descriptive statistics and graphs for the variable MAGN
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This note was uploaded on 10/10/2010 for the course STATS 1181 taught by Professor Darkoh during the Fall '09 term at Langara.

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HW1-1 - d1 1 Descriptive Statistics and Graphs for PLACE...

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