For the following data of the daily wages received by 30 labourers in a certain factory, construct a grouped frequency distribution table by dividing the range into class interval of equal
width, each corresponding to 2 rupees, in such a way that mid values of first class interval corresponding to Rs. 12-14, 16, 16, 14, 22, 13, 15, 24, 12,
23, 14, 20, 17, 21, 22, 18, 18, 19, 20, 17, 16, 15, 11, 12, 21, 20, 17, 18, 19, 23.
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Answers
Answer: Daily wages received by 30 labourers
14, 16, 16, 14, 22, 13, 15, 24, 12, 23, 14, 20, 17, 21, 22, 18, 18, 19, 20, 17, 16, 15, 11, 12, 21, 20, 17, 18, 19, 23.
class interval of equal width, each corresponding to 2 rupees, in such a way that mid values of first class interval corresponding to Rs. 12
To Find : construct a grouped frequency distribution table
Solution:
11 - 13 ( includes 11 not 13)
Mid value of 11-13 = 12
Width = 2
Class Frequency
11 - 13 3 11, 12, 12 ,
13 - 15 4 13, 14 , 14 , 14
15 - 17 5 15 , 15 16 , 16 , 16
17 - 19 6 17 ,17 , 17, 18 , 18 , 18
19 - 21 5 19, 19 , 20 , 20 , 20
21 - 23 4 21, 21 , 22 , 22
23 - 25 3 23, 23 , 24
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Answer:
Daily wages received by 30 labourers
14, 16, 16, 14, 22, 13, 15, 24, 12, 23, 14, 20, 17, 21, 22, 18, 18, 19, 20, 17, 16, 15, 11, 12, 21, 20, 17, 18, 19, 23.
class interval of equal width, each corresponding to 2 rupees, in such a way that mid values of first class interval corresponding to Rs. 12
To Find : construct a grouped frequency distribution table
Solution:
11 - 13 ( includes 11 not 13)
Mid value of 11-13 = 12
Width = 2
Class Frequency
11 - 13 3 11, 12, 12 ,
13 - 15 4 13, 14 , 14 , 14
15 - 17 5 15 , 15 16 , 16 , 16
17 - 19 6 17 ,17 , 17, 18 , 18 , 18
19 - 21 5 19, 19 , 20 , 20 , 20
21 - 23 4 21, 21 , 22 , 22
23 - 25 3 23, 23 , 24
Step-by-step explanation: