Question

the question is like this actually find the class boundaries and mid point of the following frequency distribution also draw histogram scores =10_14,15_19,20_24,25_29,30_34,35_39 no.of students =7,10,15,3,4,1,

Answer 1

so this is what your table looks like



the class boundaries are 10 -14 , 15 - 19 etc

to find the class centre add the boundary values and divide by 2

the centre should always be between the boundary values

if its not, you've made a mistake

Answer 2

so your histogram will look like