Correlation is a measue of how close the line fits the points that you found in your experiment. Anyone can say whether they think the line is a good fit or not, but to measure it exactly, we use the correlation coefficient: R 2. Look at the following two plots. In the first, the line fits very well, and in the second, then line fits very poorly.
2 Answers. , Victim of celery induced tongue-numbness. The tingling in your tongue is an allergic reaction to furanocoumourans, a chemical found in celery. It is a toxic chemical produced by plants as a defense mechanism against insects and animals.
Any inflammation of this nerve leads to the symptoms you said. Tongue numbness and face numbness is due to labial / lingual / facial branches of the nerve { as you see only half of the tongue is numb }. The cause of inflammation needs to be found out. It is mostly the tooth infection which is the culprit. You may not feel pain in the tooth that severe earlier.