Let's look at the correlation between (a) height and arm span and

(b) hand span and left forearm length for 12 students.

(cm)	St 1	2	3	4	5	6	7	8	9	10	11	12
Height	165	158	140	165	168	158	169	165	165	163	165	170
Arm Span	167	152	140.5	164.5	160	160	170	155	163.5	152	162	180
Left forearm length	45	40	42	45.5	43.5	42	43	42.5	43	41	45	48
Left hand span	21.5	18	20	17	20.5	19.5	17.5	22	19	20	21	17

Are these two associations weakly or strongly correlated? Construct a scatterplot and determine the degree of association for both associations. When done, carry out a linear regression analysis for both cases, constructing the equations for both associations.

once you have determined both equations, use them to predict the following: (a) Dr. Simon has an arm span of 70 inches. Based on your linear regression equation, how tall is he? (b) Dr. Simon's left hand spans 8 inches. Based on your linear regression equation, what is the length of his left forearm?