frequency polygon

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..

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 both directions to meet the X - a..

Identify the incorrect statement. I. The histogram is a graph that displays the data by using continuous vertical bars of various heights to represent the frequencies of classes. II. The frequency polygon is a graph that displays the data by using lines that connect po..

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 distributions are histogra..

A frequency distribution of the duration of telephone calls monitored at the local telephone exchange are shown. Length of calls(minutes) Number of calls 2.5 - 4.5 10 4.5 - 6.5 15 6.5 - 8.5 30 8.5 - 10.5 15 Construct a frequency polygon and ogive for the data. => Graph..

The distance traveled (in thousands of kilometers) by female drivers in an year is as recorded. Distance traveled Number of females (Frequency) 2 0 4 4 6 7 8 18 10 24 12 27 14 14 16 6 Construct a frequency polygon and find the mean. => graph 2 and 14.69 or graph 2 and ..

The frequency distribution represents the data obtained from a sample of computer repairs. The values are the mean time (in hours) between repairs on 80 machines. Mean time between repairs Number of machines 25.5 - 28.5 5 28.5 - 31.5 9 31.5 - 34.5 32 34.5 - 37.5 20 37.5 - 40.5 12 40.5 - 4..

The typing speed (in words per minute) of 31 office assistants is shown. Typing speed Number of office assistants 54 - 58 2 59 - 63 5 64 - 68 8 69 - 73 6 74 - 78 4 79 - 83 5 84 - 88 1 Which frequency polygon represents the data? => both graph 1 and graph 2 or graph - 1 or neithe..

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 of constructing an o..

1. In a simple bar graph, the height of each bar represents the frequency. The thickness has no significance. All bars to have the same thickness. 2. We use double bar graph when we want to compare two things. 3. In the frequency polygon, the fre..