Answer to Question #237887 in Statistics and Probability for EVANGELISTA

Question

Constract scatterplot of the data shown for the age of person and its weight.determine if there is a relationship between the two variables by computing the correlation coefficient found use a=0.05
Age(y)values. Weight(X)value
12. 44
20. 71
27. 84
38. 57
43. 74
46. 51
48. 59
61. 96
68. 69
77. 56

Answer 1

By using Excel function

=CORREL(A2:A11,B2:B11)

r=0.1997817

So, there is a weak, positive relationship.