frequency classes

It is defined as the rate of change of phase with time. One full wave (i.e., a crest and a trough) is associated with a phase change of 360 o or 2 p radians. The time required for this change is the period T. Thus, the angular frequency ..

The favorite colors of 14 students in a class were noted in the frequency table. Find the number of students whose favorite color is green. => 2 or 4 or 3 or 1..

The number of waves, which pass through a given point in one second is known as frequency. It is denoted by the Greek letter n (nu). The unit of frequency is cycle per second or simply reciprocal second (s - 1 ). A cycle is said to be completed when a wave consisting of one ..

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 ar..

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..

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 or All of t..

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..

The frequency distrubution table shown here is incorrectly constructed. State the reason. Class Frequency 7 - 12 3 13 - 18 1 19 - 24 4 25 - 30 6 31 - 36 2 => The upper and lower class limits should be even numbers. or The class width should be an odd number. ..

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, 284.75, mean..

Identify the statement which does not form a part of the procedure in the construction of a frequency table. I. The number of classes should be between 6 and 20. II. The class width should be an even number. III. The classes must be mutually exclusive. IV. Th..