Concept explainers
Comparing Variations. Consider the following data sets.
a. Find the mean, median and range for each of the two data sets.
b. Give the five-number summary and draw a boxplot for each of the two data sets.
c. Find the standard deviation for each of the two data sets.
d. Apply the range rule of thumb to estimate the standard deviation of each of the two data sets. How well does the rule work in each case? Briefly discuss why it does or does not work well.
e. Based on all your results compare and discuss the two data sets in terms of their center and variation.
15. The table below gives the cost of living index (COLI) for six East Coast counties and six Midwest counties (using the ACCRA 2013 index, where 100 represents the average cost of living for all participating cities with a population of more than 1.5 million).
East Coast Counties | Midwest Counties | ||
Miami-Dade FL | 104.8 | Edwards II | 96.5 |
Union NJ | 128.3 | Scott IN | 92.9 |
New York NY | 314.2 | Schuyler MO | 94.4 |
Richmond NY | 134.2 | Adair OK | 87.4 |
Philadelphia PA | 123.4 | McCulloch TX | 95.4 |
Arlington VA | 141.1 | Loving TX | 228.2 |
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USING+UNDERSTAND MATH W/MATHLABPLUS >I
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt