frequency distribution classes

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 d..

Recognize the false statement(s). I. The numbers used to separate the classes, so that there are no gaps in the frequency distribution are called class limits. II. Class width for a class is found by subtracting the lower class l..

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 cla..

Plant scientists developed different varieties of corns that have a rich content of lysine which is a nutritious animal feed. A group of chicks were given this food to test the quality. Weight gains (in grams) of these chicks after 21 days are as recorded: 380, 321, 366, 356, 349, 337, 399, 384, 41..

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 - 9..

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 cons..

Identify the error in constructing frequency distribution table. Class Frequency 53 - 57 8 58 - 62 4 68 - 71 3 72 - 77 1 => The number of classes are less than 5 or The classes are not continuous or The width of the classes are not equal o..

The quiz scores of 50 students of a class is as shown in the frequency distribution. Quiz score Frequency 0 - 2 6 3 - 5 13 6 - 8 9 9 - 11 14 12 - 14 8 Find the variance and standard deviation. => 7.3 and 68.14 or 3.89 and 1.97 or 3.89 and 15.15 or 15.15 and 3..

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..