Solve the prior knowledge problems CSCONCEPTSThe following key concepts will be addressed in this chapter:Organizing, representing, analysing and interpreting data, and utilizing differentstatistical tools, facilitate prediction and drawing of conclusions.Different statistical techniques require justification and the identification of theirlimitations and validity.Approximation in data can approach the truth but may not always achieve it.Correlation and regression are powerful tools for identifying patterns.PRIOR KNOWLEDGEBefore starting this chapter, you should already be able to complete the following:1 For the data 1, 2, 2, 5, 6, 6, 6, 10, find:athe meanthe mode-81с2 For the straight line with equation y = 1.5x+7, statea the gradientbthe coordinates of the point where the line crosses the y axis.OPE.E & bowodede expornow He tadi atasgeitubong niTOOLKIT: Probl Soter Activityishlodlibas slam3563179uslugoat the graphs in Figure 6.1 and discuss what message they are trying to convey. What techniques do they use toade you?Which average would a union representative wish to use?Which would the owner wish to use?Which is the most meaningful?look at this problem:Innual salaries of people working in a small business (in thousands of £s) are:0, 10, 15, 15, 20, 20, 25, 30, 100.Work out the mean, median and mode.TazAverage Class Scoreb the mediand the range.onilqise ni zsid bris 290102 616b to vtilidsilemahFatality Rate1615.8qm1996diet1997ek flu131R² = 0.97

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