Question

Explain the following terms:-
Exclusive series
open end classes
cumulative frequency
class limit
tally mark ​

Answer 1

Answer:

a-Exclusive series is that series in which the upper limit is not included in that class and is included in upcoming class. The exclusive series is a type of continuous series.

b-If, in a frequency distribution, the initial class interval is indeterminate at its beginning and/or the final class interval is indeterminate at its end, the distribution is said to possess “open ended” classes.

c-Cumulative frequency analysis is the analysis of the frequency of occurrence of values of a phenomenon less than a reference value. The phenomenon may be time- or space-dependent. Cumulative frequency is also called frequency of non-exceedance.

d-The lower class limit of a class is the smallest data value that can go into the class. ... The upper class limit of a class is the largest data value that can go into the class. Class limits have the same accuracy as the data values; the same number of decimal places as the data values.

e-Tally marks, also called hash marks, are a unary numeral system. They are a form of numeral used for counting. They are most useful in counting or tallying ongoing results, such as the score in a game or sport, as no intermediate results need to be erased or discarded.