If the 'less pan ogive' and 'more than ogive' intersect each other at (20.5, 46.5), then the median of the given data is
Answers
Answer:
20.5
Step-by-step explanation:
the less than ogive curve gives cumulative frequency (probability) for x greater than =a
the more than ogive curve gives cumulative frequency (probability)for x less than = a
they intersect at median ,as cumulative frequency will be 50 % of the median
so the median is 20.5
Given : less than ogive and more than ogive intersect each other at 20.5 and 46.5
To find : median of the given data
Solution:
x - axis generally show the Values
y - axis shows frequency
Median is the x value in intersection point
y axis show the 50% frequency at the median
less than ogive and more than ogive intersect each other at 50% frequency
Hence 20.5 is the median
46.5 shows 50% cf hence total frequency = 93
Median of given data is 20.5
The less than ogive curve gives cumulative frequency (probability) for x ≤ a.
The more than ogive curve gives cumulative frequency (probability) for x ≥ a.
cumulative frequency will be 50% of the total at intersection of the more than ogive and less than ogive
which is Median
As we know that Median is middle data when data is arranged ascending/descending
so cumulative frequency will be 50% at Median
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