The lower the pH reading, the more acidic the solution. Readings from 0â7 are considered acidic, and numbers from 7.0â14 are considered basic, or alkaline. Pure water, in the very middle of the (logarithmic) pH scale, has a pH of 7.0, which is considered neutral.
Bell curve may refer to: 1  A Gaussian function, a specific kind of function whose graph is a bell-shaped curve. 2  Normal (Gaussian) distribution, whose density function is a Gaussian function.ell curve may refer to: 1  A Gaussian function, a specific kind of function whose graph is a bell-shaped curve. 2  Normal (Gaussian) distribution, whose density function is a Gaussian function.
A normal distribution is a distribution that is bell-shaped and symmetrical. The mean, median, and mode are all the same and coincide with the peak of the curve. The frequencies then gradually decrease at both ends of the curve. The normal distribution is also often called the bell-shaped curve because of its shape.hat is, it is the number or response category with the most observations for that variable. The midpoint of the normal distribution is also the point at which three measures fall: the mean, median, and mode.