When do we call a frequency distribution symmetric?
Answers
Answer:
Symmetrical distribution occurs when the values of variables occur at regular frequencies and the mean, median and mode occur at the same point. In graph form, symmetrical distribution often appears as a bell curve. If a line were drawn dissecting the middle of the graph, it would show two sides that mirror each other.
Answer:
A Frequency distribution is said to be symmetric when values of the same variables (events) occur at a regular interval of time.
Or
When the mean, median and mode of a a given data all occur at the same point of time the Frequency distribution becomes symmetrical.
Step-by-step explanation:
Frequency is the number of occurrences of a repeating event per unit of time.
Or
Frequency is the rate at which something occurs over a particular period of time or in a given sample of data.
A symmetrical Frequency distribution is when a line drawn dissecting through the middle of a graph of a sample data or events then both the side appear to be like a mirror image of each other.
Therefore,
Mathematically the frequency is symmetrical when the occurence same value (variable) are in equal intervals of time.
In physics the frequency is symmetrical when the amplitude is constant throught. When amplitude is constant the wave crest and the wave trough is equal.