wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The following table gives the heights (in metres) of 360 trees:
Height Number of trees
Less than 7 m
Less than 14 m
Less than 21 m
Less than 28 m
Less than 35 m
Less than 42 m
Less than 49 m
Less than 56 m
25
45
95
140
235
275
320
360

From the above data, draw an ogive and find the median.

Open in App
Solution

We plot the points A(7,25), B(14,45), C(21,95), D(28,140), E(35,235), F(42,275), G(49,320) and H(56,360) .Join AB, BC, CD, DE, EF, FG, GH and HA with a free hand to get the curve representing the 'less than type' series.


Here, N=360N/2=180From P(0,180), draw PQ ∥x-axis meeting the curve at Q.Draw QM⊥OX meeting the x-axis at M.Clearly, OM= 32.5 mHence, median=32.5 m

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Median
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon