# IMG 0631.jpeg - /1. In sampling explain why obtaining a...

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Unformatted text preview:/1. In sampling, explain why obtaining a representative sample is important. Why is obtaining a representative sample important? O A. The sample must be representative in order to be used as part of a designed experiment rather than an observational study. B. The sample must be representative in order to use inferential statistics to draw conclusions about the entire population. C. The sample must be representative in order to be considered a simple random sample. Q D. The sample must be representative in order to establish causation rather than only reveal association. 12. A government agency monitors and reports on earthquakes, providing daily real-time, worldwide earthquake lists. Some of the information for four particular earthquakes is shown in the following table. Magnitude is given on the Richter scale and NST stands for the number of stations that reported the activity on the same earthquake. Complete parts (a) through (e). Time Magnitude Depth (km) NST Region 05:35:46 1.6 17.6 23 N. California 13:15:28 1.8 7.5 12 Tennessee 23:55:10 1.6 5.1 16 Nevada 18:20:36 2.3 12.5 Puerto Rico a. identify the type of data provided by the information in the first column of the table. (1 ) b. Identify the type of data provided by the information in the second column of the table. (2) c. Identify the type of data provided by the information in the third column of the table. (3) d. Identify the type of data provided by the information in the fourth column of the table. (4) e. Identify the type of data provided by the information in the fifth column of the table. (5) (2) Quantitative, Continuous (3) O Quantitative, Discrete (1) Quantitative, Continuous Q Qualitative O Quantitative, Continuous O Quantitative, Discrete Quantitative, Discrete Qualitative Qualitative (4) Qualitative (5) Qualitative Quantitative, Discrete Quantitative, Continuous O Quantitative, Continuous Quantitative, Discrete