difference between cumulative frequency & frequency distribution

A plot of the cumulative frequency against the upper class boundary with the points joined by line segments. Any continuous cumulative frequency curve, including a cumulative frequency polygon, is called an ogive. There are two ways ..

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 ..

There are two ways of constructing an ogive or cumulative frequency curve. (Ogive is pronounced as O-jive). The curve is usually of 'S' shape. We illustrate both methods by examples given below: Draw a 'less than' ogive curve for the following dat..

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 represented is called an array. The difference between..

The cumulative frequency for the distribution of the distance (in miles) that 20 randomly selected runners ran during a week is given in the ogive. Find the interquartile range for the data by constructing a box plot. => 18.5, Figure 2 or 11.2, Figure 2 or 23.5, Figure 1 or 12, ..

(i) Various electrical machines and noises cause amplitude disturbance in the transmission of amplitude-modulated wave. This makes the reception noisy. So, there is a need for different type of modulation, which can reduce the noise factor. Frequency modulation (FM) was proposed..

The frequency table shows the number of games won by each country. Find the difference between the number of games won by Japan and that by Korea. => 6 or 10 or 5 or 7..

The frequency table shows the number of students who participated in different competitions. Find the number of students who participated in dancing. => 19 or 25 or 32 or 12..

The frequency table shows the number of games won by each country at the Olympics. Find the difference between the number of games won by Japan and Korea. => 2 or 5 or 7 or 3..

The frequency table shows the number of games won by each country. Find the difference between the number of games won by USA and that by France. => 3 or 5 or 7 or 8..