Question

37. Draw a histogram of marks obtained by 80 students
am of marks obtained by 80 students in a school. Also make the frequency
polygon.
305
315
325
335
345
Marks obtained
(Mid values)
No. of students
12
18
28
15
I
5​

Answer 1

attached  frequency   polygon.

Step-by-step explanation:

Marks   Students

305       12

315        18  

325        28

335        15

345         5

Marks        Students

300-310       12

310-320        18  

320-330        28

330-340        15

340-350         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.

Histogram: a graphical display of data using bars of different heights. It is similar to a Bar Chart, but a histogram groups numbers into ranges

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Answer 2

Answer:

hope it helps you

Step-by-step explanation:

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