Question

Fructosamine	Number of Group Visits Attended	InfantBirthweight in grams
152	6	3175
173	5	3225
174	4	3350
175	4	3400
176	3	3530
183	2	3540
188	3	3525
192	3	3650
202	2	3600
205	2	3550
210	1	3950
215	2	3325
220	2	4500
258	1	4800

How would you interpret the correlation between the number of group visits attended and fructosamine level?

  

Strong (not the answer)

Moderate ( not the answer)

  Very strong

  Weak

Answer 1

It is clear from the data that the data values for variable fructosamine level are increasing from 152 to 258 and the data values from variable number of group visits attended are decreasing from 6 to 1.

Therefore, one variable is increasing rapidly and other variable is decreasing rapidly, this means that there is a very strong correlation between the two variable and this correlation must negative

If we calculate the correlation coefficient using excel function CORREL, then we get r = -0.8383, which is in the range of very strong correlation ranging from 0.8 to 1

So, answer is very strong