This is for math studies IB INTERNAL ASSESSMENT !

 

Using the following data please do the mathematical calculations by a chi squared test the find the X^2 value by hand meaning use the formula. Also use a scatter diagram for the data and show the line of regression 

 

 

Juliana Ibrahim Is there a correlation between height and weight ? Gender Age Height ( cm ) Weight ( kg ) Male 13 164 cm 48 kg Male 13 176 cm 86 kg Female 14 170 cm 55 kg Female 17 176 cm 90 kg Male 16 186 cm 77 kg Male 17 174 cm 65.6 kg Female 17 162.5 cm 55 kg Male 17 182.88 cm 76 kg Male 18 179 cm 63.4 kg Male 17 178 cm 65 kg Male 13 174 cm 69 kg Female 16 170 cm 56.5 kg Male 15 164 cm 56 kg Female 16 180 cm 57 kg Male 16 178 cm 70 kg Male 16 178.5 cm 69.2 kg Female 15 164 cm 51 kg Female 17 162 cm 60 kg Male 15 179 cm 59 kg Male 15 164 cm 52 kg Male 15 177 cm 67.4 kg Male 14 175 cm 49 kg Male 13 165 cm 50 kg Female 13 162.56 cm 52.16 kg Female 14 171 cm 60 kg Male 13 157 cm 38 kg Male 14 165.1 cm 61 kg Male 14 170 cm 58 kg Female 14 158 cm 40.5 kg Male 13 177 cm 70 kg Male 14 175 cm 65 kg Female 14 187 cm 80 kg Juliana Ibrahim Is there a correlation between height and weight ? Gender Age Height ( cm ) Weight ( kg ) Male 14 130 cm 68 kg Female 14 163 cm 53 kg Male 14 170 cm 58 kg Female 13 164 cm 49 kg Female 13 156 cm 42 kg Male 17 166 cm 60 kg Female 15 172 cm 66 kg Female 15 176 cm 67 kg Male 15 177.8 cm 61.2 kg Male 15 172 cm 60 kg Male 15 160 cm 60 kg Male 14 164 cm 55 kg Female 14 173 cm 54 kg Male 15 158 cm 42 kg Female 16 172 cm 60 kg Male 14 170 cm 65 kg Female 15 152 cm 45 kg Female 14 150 cm 48 kg Male 14 166 cm 54 kg Survey done for 50 people grades 8,9,10,11

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