The volume of traffic in either direction, the time of the day, how far is the next signal, etc. In Mumbai, for example, the flow of traffic in the morning is more in the southern direction and in the evening, the flow of traffic is more in the northward directions. The traffic signal circuits have to be timed in such a way that such variations during the day are taken into account. The timing of the signal changes will depend on the statistical inputs. In the stock market, the prediction of highs and lows also depends on statistics.
Statistics deals with distribution of numbers in a given set of numbers.
The given set of numbers is called the sample . Instead of dealing with single numbers, statistics gives you a handle to deal with an average quantity which is a representative of the set of numbers. Mean or average 2. Frequency and frequency table 3. Class interval 4.