Question

draw a bargraph and frequency polygon for the distribution MARKS:300-310 , 310-320 ,320-330 ,330-340 ,340-350 ,350-360. NUMBER OF STUDENTS 12 ,18 ,28 ,15 , 5 , 2​

Answer 1

Answer:

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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Step-by-step explanation: