ungrouped relative frequency distribution

Frequency Distribution - A teacher gave a test to a class of 26 students. The maximum mark is 5. The marks obtained by the pupils are: Such data as above is called ungrouped (or raw) data. We may arrange the marks in ascending or descending order. The data so represent..

The number which tells us how many times a particular data appears is called the frequency. For example, 2 marks have been scored by five students which means marks 2 occurs five times. Therefore, the frequency of score 2 is five. Similarly, the frequency of mark..

Cumulative Frequency Distribution - Cumulative frequency is obtained by adding the frequency of a class interval and the frequencies of the preceding intervals upto that class interval. This is explained by an example below. The following frequ..

We have P(X = x + 1) = n C x + 1 p x + 1 q n - x - 1 ..

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Wave velocity is defined as the distance traveled by the wave in one second. Or Wave velocity = Wavelength frequency..

Frequency Polygon - In a frequency distribution, the mid-value of each class is obtained. Then on the graph paper, the frequency is plotted against the corresponding mid-value. These points are joined by straight lines. These straight lines may be extended in..

The scores of 20 students in a quiz are collected and shown in the table: Construct a frequency distribution and a histogram for the data. => Figure - A or Figure - B..

The velocity (m/sec) of water flow in a pipe of 25 m diameter for consecutive days of a month are observed as: 1.5 1.5 1.6 1.4 1.5 1.4 1.6 1.4 1.5 1.3 1.4 1.3 1.4 1.5 1.7 1.6 1.5 1.5 1.5 1.4 1.3 1.5 1.5 1.6 1.7 1.5 1.4 1.4 1.4 1.5 Find the class boundaries for the last class by constructing an ..

Which of the following statement(s) is/are true? I. On a pareto chart, the frequencies should be represented on the y - axis. II. In a frequency distribution, the number of classes should be between 5 and 20. III. The three types of frequency distributio..