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Question
Which of the given less than cumulative frequency curve (ogive) correctly represents the following distribution?
Height110−120120−130130−140140−150150−160Number of students 7 9 12 10 4
Which of the given less than cumulative frequency curve (ogive) correctly represents the following distribution?
Height110−120120−130130−140140−150150−160Number of students 7 9 12 10 4
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Solution
The correct option is A
The less than cumulative frequency table for the given distribution is
Height (Class Interval)Number of students(Frequency)Cumulative Frequency110−12077120−130916130−1401228140−1501038150−160442
Taking upper class limit along the x-axis and corresponding cumulative frequencies along the y-axis, we get the points (120,7), (130,16),(140,28),(150,38),(160,42).
Join the points to get the required ogive.
The less than cumulative frequency table for the given distribution is
Height (Class Interval)Number of students(Frequency)Cumulative Frequency110−12077120−130916130−1401228140−1501038150−160442
Taking upper class limit along the x-axis and corresponding cumulative frequencies along the y-axis, we get the points (120,7), (130,16),(140,28),(150,38),(160,42).
Join the points to get the required ogive.
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