Question

| A TV reporter was given a task to prepare a report on the rainfall of the city 3
Dispur of India in a particular year. After collecting the data, he analyzed
the data and prepared a report on the rainfall of the city. Using this report,
he drew the following graph for a particular time period of 66 days
Cumulative Frequency
-curve 2
0
10
20
50
30 40
Rainfallin am
60
Based on the above graph, answer the following questions:
(i) Identify less than type ogive and more than type ogive from the given graph.
(ii) Find the median rainfall of Dispur
(iii) Obtain the Mode of the data if mean rainfall is 23.4cm​

Answer 1

Answer:

In △ABC AB=AC

⇒∠B=∠C (Angles opposite to equal sides are equal)

Now using angle sum property

∠A+∠B+∠C=180

∘

⇒80

∘

+∠C+∠C=180

∘

⇒2∠C=180

∘

−80

∘

⇒∠C=

2

100

∘

=50

∘

now ∠C+∠x=180

∘

(Angles made on straight line (AC) are supplementary)

⇒50

∘

+∠x=180

∘

⇒∠x=180

∘

−50

∘

=130

∘

@ARSH

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