Answer to Question #230724 in Statistics and Probability for Solomon

Question

In Mr Samboko courses, the coefficient of correlation between General biology I and General-biology II for 20 students is 0.3, Mean of General biology I and General-biology II are 15 and 20 respectively and also the standard deviation of General biology I and General-biology II are 4 and 5 respectively. At the time of calculation one item 27 has wrongly been taken as 17 for General biology I and 35 instead of 30 for General biology II. As a biostatistics student find the correct coefficient of correlation between General biology I and General-biology II for 20 students.