M/j 2006 9c(ii) p42. It's a simple question just tell me how I cn draw histograms? Plz reply as soon as possible it's very important Thanks
You'll get pas 10 and q as 72.
First : frequency density = frequency / class width
So for class :
0<t<=30 f.d. = 0.67
30<t<=60, f.d. = 2.4
60<t<=80, f.d. = 0.4
On y-axis, 1 cm = 0.2 units of f.d.
On x-axis, 1 cm = 5 s