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.
Many factors can increase your risk for neck pain. If the neck pain is severe, it may be in your best interests to go to a doctor. Whiplash, a herniated disc, arthritis - many issues can cause a feeling of neck pain, and the more intense it is the more it is a good idea to check it out. Anxiety also has to be considered.