frequency distribution frequency

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..

Which of the following statement(s) is/are false? I. Data such as blood types (A, B, AB, O) can be organised into a categorical frequency distribution. II. Except for rounding errors, relative frequencies should add up to 100. III. A statistical device used in explorat..

Identify the discrepancy in the frequency distribution. Class Frequency 15 - 19 2 19 - 23 3 23 - 27 1 27 - 31 6 31 - 35 4 => The class width should be more than 5 and it should be an odd number. or The class width should be more that 5, the classes must be mutually exc..

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 great..

The scores of 60 students of a class are shown in the frequency distribution. Scores Frequency 86 - 96 14 97 - 107 7 108 - 118 13 119 - 129 10 130 - 140 11 141 - 151 5 Find the mean and the modal class of the data. => 115 and 151 or 115.2 and 86 - 96 or 115.3 and 141 -..

The net worth (in millions of dollars) of 30 business units in a city are shown in the frequency distribution. Net worth Frequency 15 - 25 3 26 - 36 10 37 - 47 12 48 - 58 5 Find the mean and the mode of the data and compare them. => 38, 37, mean > mode or 284.75, 28..

The daily water consumption (in m 3 ) of 25 different textile mills recorded by the Water Authority is shown. 2400 2700 1100 1830 2200 2250 1400 1720 2620 1580 1640 2100 1360 1750 2600 1440 1900 2520 1700 1210 2300 2050 1500 1990 2320 Identify the frequency of each class by constructing a..

Cumulative frequency is obtained by adding the frequency of a class interval and the frequencies of the preceding intervals upto that class interva..

Intensity of sound depends on its frequency. The human ear is more sensitive to the middle part of the audible range. Thus, a sound of a frequency in the middle of the audible range will appear to be louder than the sound of a frequency near the extremities of the ran..

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..