Question

A grouped frequency table with class intervals of equal sizes using 250-270 (270 not included in this interval) as one of the class intervals is constructed for the following data:268, 220, 368, 258, 242, 310, 272, 342, 310, 290, 300, 320, 319, 304, 402, 318, 406, 292, 354, 278, 210, 240, 330, 316, 406, 215, 258, 236.


i) The frequency of the class 310-330 is: 

4

5

6

7

ii) The observation 350 in the above data lies in the class 

a) 310 – 330

b) 300 – 350

c) 330 – 350

d) 350 – 370

iii) Upper limit of the least frequency class is ______ 

370

390

410

350

iv) Highest frequency of the data belongs to the class is ___ 

a) 330 – 350

b) 310 – 330

c) 290 – 310

d) 350 – 370

v) Class mark of the first class is _______ 

210

220

230

240

​

Answer 1

Answer:

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