Question

The class marks of a distribution are $2.03$, $2.23$, $2.43$, $2.63$, $2.83$, $3.03$ and $3.23$ Determine the class size and the class boundaries

Answer 1

Sol. Class size is $0.20$. Class boundaries are $1.93-2.13$, $2.13-2.33$, $2.33-2.53$, $2.53-2.73$, $2.73-2.93$, $2.93-3.13$, $3.13-3.33$