Click to draw/clear town borders. Notable locations in Westfield: Westfield Station (A), Echo Lake Golf Course (B), Westfield Volunteer Rescue Squad (C), Union County Fire Science Training Academy (D), Westfield Fire Department Station 2 (E), Westfield Rescue Squad (F), Westfield Fire Department Station 1 (G).
A distribution is said to be symmetric if the relative frequency (or probability) is the same the same distance either side of its centre, m. Mathematically, the distribution of X-m is then the same as the distribution of m-X.The mean and median of a symmetric distribution are equal.The most important symmetric distribution is the normal distribution, which is unimodal and therefore is symmetric about the mode.athematically, the distribution of X-m is then the same as the distribution of m-X. The mean and median of a symmetric distribution are equal. The most important symmetric distribution is the normal distribution, which is unimodal and therefore is symmetric about the mode.
The midpoint of the normal distribution is the point that has the maximum frequency. That 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.In a perfect normal distribution, these three measures are all the same number.he 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.