Question

Following are the marks of group of 92 students in a test of reading ability:

Marks 50-55 45-50 40-45 35-40 30-35 25-30 20-25 Total

Number

of

students

4 10 15 18 20 12 13 92

Construct a frequency polygon for the above data.​

Answer 1

ok nice questions keep trying

Answer 2

Given : marks of group of 92 students in a test of reading ability

Marks   50-55 45-50 40-45 35-40 30-35 25-30 20-25  

Students  4       10          15       18        20        12       13

To Find : Construct a frequency polygon

Solution:

Marks     Students        Mid point

50-55           4                52.5

45-50           10                47.5

40-45           15                42.5

35-40           18                37.5

30-35          20                32.5

25-30           12               27.5

20-25          13                 22.5

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.

Learn More:

Draw a histogram and frequency polygon to represent the runs ...

brainly.in/question/9806905

Ages of 60 teachers in primary schools of a Mandal are given in the ...

brainly.in/question/11765116