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IB MAI HL Statistics & Probability Topic 4.2 Bivariate Statistics (id: 17ee10213

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admin 发表于 2024-3-31 22:48:04 | 显示全部楼层 |阅读模式
本题目来源于试卷: IB MAI HL Statistics & Probability Topic 4.2 Bivariate Statistics,类别为 IB数学

[填空题]
The number of daily v/d jbt1utvb,gf(- zp0 v: (dcnisitort+d7b* si* gh: wmf,pzs to the famous 'Bondi Beach' in Sydney, Australia, and the daily temperature:i* pt hdf7,w sg+mb*z on those days, were recorded for eight days in February. The table below shows this data and has been ordered in ascending order by temperature.


The number of visitors to Bondi Beach varies linearly with the temperature.
1. Find
1. Pearson's product-moment correlation coefficient, r ;≈   
2. the equation of the regression line y on x . y =ax+b a =    b =   
2. Use the equation of the regression line y on x to estimate the number of visitors to Bondi Beach during a day the temperature is $26^{\circ} \mathrm{C}$ .




参考答案:
空格1: 1±2%空格2: 40.3±2%空格3: -403±2%


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