In other words, for some companies, a fiscal Q1 may run from February through ... from April 1 to June 30 are for Q2 of the fiscal quarter system. Q3: The third quarter is during the months ...

To find the interquartile range, subtract the value of the lower quartile Q1 from the value of the upper quartile Q3. A school librarian records the number of books borrowed in a school year by ...