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 Headache Symptoms: Neck Pain. Pain in the neck can be more than just a hassle. Neck pain can come from disorders and diseases of any structure in the neck. There are seven vertebrae that are the bony building blocks of the spine in the neck (the cervical vertebrae) that surround the spinal cord and canal.