mPOUNDS04010020€€40€€10020€€€)Histogram for the Compressive Strength of*@Concrete Blocks*@"(from Hogg & Ledolter - page 14-15*@+(numbers are in 100 pounds per square inch)*@ Percentage(@100(6€d0€4@4@Y@ ACompressive Strength(@2670(12€d0€4@4@Y@ A 0 - Automatic40ÿÿ1.53.020300ÿÿÿ5002020ÿÿÿ4@ÿÿÿÿÿÿ28.00168.0014