A manufacturer in the Midwest purchases castings from a stee

A manufacturer in the Midwest purchases castings from a steel factory. Thirty castings were selected at random and weighted and their masses were recorded to the nearest kilogram, as shown below: Group the measurements into a frequency distribution table having 6 equal classes from 215 to 244 Consruct a histogram of the distribution

Solution

a)

Histrogram:

https://www.meta-chart.com/share/untitled-8644

215-220	4
220-225	6
225-230	11
230-235	4
235-240	2
240-245	3