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For data on frequency distribution of weights:70, 73, 49, 57, 44, 56, 71, 65, 62, 60, 50, 55, 49, 63 and 45 If we assume class length as 5, the number of class intervals would be 
  • a)
    5
  • b)
    7
  • c)
  • d)
    8
  • e)
     
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
For data on frequency distribution of weights:70, 73, 49, 57, 44, 56, ...
Correct Answer :- c
Explanation :  We could choose intervals of 5. We then begin the scale with 44 and end with 73.
Class Interval
44 – 48
49 – 53
54 – 58
59 – 63
64 – 68
69 – 73
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Most Upvoted Answer
For data on frequency distribution of weights:70, 73, 49, 57, 44, 56, ...
Frequency Distribution of Weights:
- 70
- 73
- 49
- 57
- 44
- 56
- 71
- 65
- 62
- 60
- 50
- 55
- 49
- 63
- 45

Assuming Class Length as 5:
To determine the number of class intervals, we need to calculate the range of the data first.

Range = Maximum Value - Minimum Value
Range = 73 - 44
Range = 29

Now, we need to divide the range by the class length to determine the number of class intervals.

Number of Class Intervals = Range/Class Length
Number of Class Intervals = 29/5
Number of Class Intervals = 5.8

Since we cannot have a fraction of a class interval, we need to round up to the nearest whole number.

Number of Class Intervals = 6 (rounded up)

Therefore, the correct answer is option 'C', 6 class intervals.
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For data on frequency distribution of weights:70, 73, 49, 57, 44, 56, ...
6
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For data on frequency distribution of weights:70, 73, 49, 57, 44, 56, 71, 65, 62, 60, 50, 55, 49, 63 and 45 If we assume class length as 5, the number of class intervals would bea)5b)7c)6d)8e)Correct answer is option 'C'. Can you explain this answer?
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