Question

The difference between the highest and lowest values of the observations is called
A. Frequency
B. Mean
C. Range
D. Class-intervals

Answer 1

Answer:

range

Step-by-step explanation:

highest value - lowest value = range

Answer 2

The difference between the highest and lowest values of the observations is called  Range.

Option (C)  Range is correct .  

 

Extra information :  

The number of entries of the data having their values lying in a class is defined as a frequency of the class.

The table in which the corresponding frequencies are written against each class is called a frequency distribution of given data.

Grouped frequency distribution are of two types :  

Exclusive form (continuous form) : A frequency  distribution in which upper limit of each class is excluded and lower limit is included,  is called an exclusive form.

Inclusive form (Discontinuous form) :  A frequency distribution in which each upper limit as well as lower limit are included, is called an inclusive form.

 

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Tally marks are used to find

A. Class intervals

B. Range

C. Frequency

D. Upper limits

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Construct a frequency table with equal class intervals from the following data on the monthly wages (in rupees) of 28 labourers working in a factory, taking one of the class intervals as 210-230 (230 not included) :

220, 268, 258, 242, 210, 268, 272, 242, 311, 290, 300, 320, 319, 304, 302, 318, 306, 292, 254, 278, 210, 240, 280, 316, 306, 215, 256, 236

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