Question

draw a histogram and frequency polygon on the same graph for the following data
class interval
150 - 200
200 - 250
250 - 300
300 - 350
350 - 400
400 - 450
450 - 500

frequency
5
3
5
6
8
7
1


plsssss fasttttttttttt

Answer 1

The answer for your question

Take classmarks and co ordinates according to the given class size and frequency and note them down in a table format.

Answer 2

Hi friend,

* first draw a table which has three rows and write class intervals and frequency and mention the given values and find midvalues for class intervals.
ex:150+200÷2=175

* take a graph.draw x axis and y axis mention class intervals on y axis and even numbers (2,4,6,8,10.....)on x axis.

* mark the frequency on graph as histogram and write the scale on top right.

* take suceeding class interval of last class interval and also preceeding class interval of first class interval.

* mark the midpoint of every class interval in histogram and joins them. take midpoint at zero at first class interval (preceeding of 150-200)and join them and last one(succeeding of 450-500)zero point and join them.

hope it helps......