Pinky Bauer,Chief Financial Officer of Harrison Haulers,Inc.,suspects irregularities in the payroll system and orders an inspection of "each and every payroll voucher issued since January 1,2000." Each payroll voucher was inspected and the following frequency distribution was compiled. The cumulative frequency of the second class interval is _________.

Question

Pinky Bauer,Chief Financial Officer of Harrison Haulers,Inc.,suspects irregularities in the payroll system and orders an inspection of "each and every payroll voucher issued since January 1,2000." Each payroll voucher was inspected and the following frequency distribution was compiled.  The cumulative frequency of the second class interval is _________.

Quizplus · Accepted Answer

The cumulative frequency of a class interval is the sum of the frequencies up to and including that interval. In this case, the second class interval is 5,001-10,000, and its frequency is 400. The cumulative frequency of the first class interval is simply its frequency, which is 500. Therefore, the cumulative frequency of the second class interval is 500 + 400 = 900. Hence, the correct option is C) 900.