Question

Following is the distribution of marks (out of 25) obtained by 10 students in Physics and Mathematics.

No. Physics
(Xi )
Mathematics
(Yi )
X2
i
Y2
i
X i Yi
1 18 21 324 441 378
2 20 23 400 529 460
3 11 14 121 196 154
4 20 23 400 529 460
5 14 17 196 289 238
6 15 18 225 324 270
7 13 16 169 256 208
8 16 19 256 361 304
9 17 20 289 400 480
10 20 23 400 529 460
Total 164 194 2780 3854 3412

 

Draw a scatter diagram for all the 10 students and calculate the correlation between marks of Physics and Mathematics.

13 Feb 2025
Answer :
Word Count : 288
हम सबसे पहले दिए गए डेटा का उपयोग करके स्कैटर डायग्राम बनाएंगे और फिर सांख्यिकीय विधि (Karl Pearson’s Correlation Coefficient) का उपयोग करके फिजिक्स और गणित के अंकों के बीच सहसंबंध (correlation) की गणना करेंगे। --- ## 1. स्कैटर डायग्राम बनाना हम X-अक्ष (Physics के अंक) और Y-अक्ष ____ _____ _________ ___ _____ ____ ____ _______ __________ _____ _____ ______.
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