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tutoringcenter |
Practice Quiz 1
Mar 15 2011, 1:00 PM EDT
1. Consider a sample with data values of 8, 36, 14, 18, and 24. Compute the mean and median.2. Consider a sample with data values of 15, 9, 14, 11, 19, 23, 20, and 8. Compute the 30th and 45th percentiles. 3. Consider a sample with data values of 6, 26, 46, 36, 16, 56, 76, and 66. Compute the first and third quartiles, then determine the interquartile range (IQR). 4. Consider a sample with data values of 10, 20, 12, 17, and 16. Compute the variance, standard deviation, and coefficient of variation. Do you find this valuable?
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tutoringcenter |
1. ANSWERS
Mar 15 2011, 1:01 PM EDT
Answers1. Mean is 20, Median is 18 2. 30th percentile is 11, 40th percentile is 14 3. Q1 is 21, Q2 is 61, IQR is 40 4. Variance is 16, Standard Deviation is 4, Coefficient of Variation is 26.67% Do you find this valuable? |
