Question

I want 5 Numericals on 1) Frequency Array
2)Discrete Series
3)Continuous Series—
a) Invlusive Series
b) Exclusive Series
FOR COMMERCE STREAM
(CLASS XI) ​

Answer 1

Answer:

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Explanation:

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Answer 2

Explanation:

Discrete Variable Continuous Variable

(i) A discrete variable can take only whole numbers. A continuous variable can take any numerical value.

(ii) Discrete varibles increase in finite jumps from one value to another and cannot take any intermediate value between them. Continuous variables can take any conceivable value and can be broken into infinite gradations.

(iii) Examples-number of workers in a factory, number of residents in a colony, etc. Examples-height, weight, distance, etc. Exclusive Method In this method, the classes are formed in such a way that the upper class limit of one class becomes the lower class limit of the next class. Continuity of the data is maintained in this method. Under this method, the upper class limit is excluded but the lower class limit of a class is included in the interval.

According to this method, an observation that is exactly equal to the upper class limit would not be included in that class but would be included in the next class. On the other hand, if it were equal to the lower class limit then it would be included in that class, e.g., if the class intervals are 0-5, 5-10, 15¬20 and so on, a value of 10 would be included in the 10-15 and not in the interval 5-10.

Inclusive Method The inclusive method does not exclude the upper class limit in a class interval. It inlcludes the upper class in a class. Thus, both class limits are parts of the class interval, e.g., the class intervals of 0-5, 6-10, 11-15, and so on are inclusive.