A researcher is interested in predicting a daughter’s IQ from her mother’s IQ. He collects the following data:

Mother’s IQ (X) Daughter’s IQ (Y)
107 112
98 102
111 125
92 99
100 105
127 123
105 104
115 109
103 97
124 120
Σ= 1082 1096

b) calculate and interpret the correlation