Question

Draw a scatter diagram and interpret.

x	1	2	3	4	5	6
y	2	4	6	8	10	12

Answer 1

The above diagram shows positive correlation between x and y.

 For Blind Students Only :

(a) A negative value of indicates an inverse relation.

(b) The value of the correlation coefficient lies Between minus one and phis one.

(c) If r = 0, the two variables are uncorrected.

(d) A high value of r indicates strong linear relationship.