Describe the shape of 8 Choose the most appropriate the distribution measures

# Describe the shape of 8 choose the most appropriate

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7. Describe the shape of 8. Choose the most appropriate the distribution. measures to describe the center and the variation. Find the measures you chose.2040608010030–390Temperature (ºF)FrequencyDaily High Temperatures40–4950–5960–6970–7980–8990–995859606162Height(inches)Students’ Heights10.4Box-and-Whisker Plots (pp. 458–465)Make a box-and-whisker plot for the weights (in pounds) of pumpkins sold at a market.16, 20, 14, 15, 12, 8, 8, 19, 14, 10, 8, 16Step 1:Order the data. Find the median and the quartiles.least value 8 8 8 10 12 14 14 15 16 16 19 20 greatest valuefirst quartile, 9 median, 14 third quartile, 16Step 2:Draw a number line that includes the least and the greatest values. Graph points above the number line that represent the five-number summary.Step 3:Draw a box using the quartiles. Draw a line through the median. Draw whiskers from the box to the least and the greatest values.Weight(pounds)810911121314161820151719Make a box-and-whisker plot for the data.9. Ages of volunteers at a hospital: 10. Masses (in kilograms) of lions:14, 17, 20, 16, 17, 14, 21, 18 120, 200, 180, 150, 200, 200, 230, 160lower halfupper halfes.
470 Chapter 10 Data Displays Chapter Test 10 4 5 6 7 10 8 9 Glasses of water Water Consumed Test Practice Make a stem-and-leaf plot of the data. 1. Quiz Scores (%) 96 88 80 72 80 94 92 100 76 80 68 90 2. CDs Sold Each Day 45 31 29 38 38 67 40 62 45 60 40 39 60 43 48 3. Find the mean, median, mode, 4. Display the data in a histogram. 0 5. WATERThe dot plot shows the number of glasses of water that the students in a class drink in one day. a.Describe the shape of the distribution.b.Choose the most appropriate measures to describe the center and the variation. Find the measures you chose. Make a box-and-whisker plot for the data.6. Ages (in years) of dogs at a vet’s office: 1, 3, 5, 11, 5, 7, 5, 97. Lengths (in inches) of fish in a pond: 12, 13, 7, 8, 14, 6, 13, 108. Hours practiced each week: 7, 6, 5, 4.5, 3.5, 7, 7.5, 2, 8, 7, 7.5, 6.59. CELL PHONESThe double box-and-whisker plot compares the battery life (in hours) of two brands of cell phones. a.What is the range of the upper 75% of each brand? b.Which battery has a longer battery life? Explain. 2 3 3.5 4 2.5 4.5 5 5.5 6 6.5 7 Brand B Brand A Battery life (hours)
1. Research scientists are measuring the number of days lettuce seeds take to germinate. In a study, 500 seeds were planted. Of these, 473 seeds germinated. The box-and-whisker plot summarizes the number of days it took the seeds to germinate. What can you conclude from the box-and-whisker plot?