Question

No. of trees planted by each student No. of students :
1-3 : 7
4-6 : 8
7-9 : 6
10-12 : 4
The above data is to be shown by a frequency polygon. The coordinates of the points to show number of students in the class 4-6 are . . . . Find the correct answer from the alternatives given.
(A) (4, 8)
(B) (3, 5)
(C) (5, 8)
(D) (8, 4)

Answer 1

Answer:

The coordinates of the points to show number of students in the class 4-6 are

(5 , 8)

Step-by-step explanation:

Trees  Students

1-3 :     7  

4-6 :   8

7-9 :    6  

10-12 : 4

A frequency polygon is another type of frequency distribution graph. In a frequency polygon, the number of observations is marked with a single point at the midpoint of an interval. A straight line then connects each set of points.

The coordinates of the points to show number of students in the class 4-6 are (5 , 8)   ( as 5 is the mid point of 4-6 & 8 is the number of students)