Study the Following Frequency Polygon and Answer the Question

Study the following frequency polygon and answer the question numbered 148 to 150 Given a line graph showing the number of students passed in Higher Secondary Examination in a school over the years from 2008 to 2013.

cgl9e-150

 

A. The increase in percentage of passed student from 2008 to 2011 approximately is:

  1. 50.5%
  2. 53.05%
  3. 55%
  4. 54.5%

B. The decrease in percentage of passed students from 2011 to 2012 approximately:

  1. 8.25%
  2. 8.24%
  3. 8.22%
  4. 8..27%

C. The average of passed students in the year 2008, 2009, 2012 approximately is:

  1. 134.41
  2. 134.32
  3. 134.56
  4. 134.67
Monis Rasool Professor Asked on 28th August 2015 in Maths.
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1 Answer(s)

A. Answer: (4) 54.5 %

Explanation:-
The students passed in 2008 = 110

Students pass in 2011 = 170
The increase passed students from 2008 to 2011 = 170 – 110
= 60

The increase in percentage of passed student from 2008 to 2011 = 60 x 100/110
= 54.5% (Approximately)

Hence, the  answer is (4) 54.5%.

B.  Answer: (2) 8.24%

Explanation:-
The students pass in 2011 = 170
The students pass in 2012 = 158

Decreased students = 170 – 156
= 14

The decrease in percentage of passed students from 2011 to 2012 = 14 x 100/170
= 8.24% (approximately)

Hence, the answer is (2) 8.24%.

C.  Answer:  (4) 134.67

Explanation:-
The total passed students in 2008, 2009, 2012 = 110 + 138 + 156
= 404

Then, the average of passed students in the year 2008, 2009, 2012 = 134.67 (approximately)

Hence, the answer is (4) 134.67 (approximately).

Anurag Mishra Professor Answered on 3rd September 2015.
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