If no correlation exists between the variables, the points appear randomly scattered on the coordinate plane. If a large correlation exists, the points concentrate near a straight line. Scatter plots are useful data visualization tools for illustrating a trend. If the vertical (or y-axis) variable increases as the horizontal (or x-axis) variable increases, the correlation is positive.
Whiplash Whiplash, a severe neck injury, can cause stiffness and pain in the neck, headache, dizziness, and more. Aortic stenosis Aortic stenosis is a condition of the heart causing shortness of breath, dizziness, or chest pain.
Tension headaches due to stress too affect the temple area. Temporal arteritis, internal ear infection, TMJ and tooth decay can all cause a temple pain. Infection in the eye, glaucoma, near and far sightedness and sinusitis are the other causes. Do discuss this with your doctor and get yourself examined.