Aradio manufacturer using 100 percent inspection was finding an average of two nonconforming items out of lots of 10,000 purchased electronic components. the estimated cost of inspecting the component is $0.25 per component, while the cost of replacing a nonconforming component after it has been assembled is about $25 per component. what is the best economic inspection decision? how much is the manufacturer saving or losing per radio under the current inspection practice if each radio contains 60 of these components?

In a high school with 3000 students, counselors are putting together a math tutoring program for the neighboring middle school. they plan to invite high school students with high average test scores to tutor middle school students, and they would like to offer gift cards to the student tutors. the counselors have a spreadsheet showing each student’s average test scores, and in order to find out how many gift cards they should purchase, the counselors need to count how many students would qualify to become tutors. which type of function would best the counselors determine the number of eligible students?