Look at the formula in the Example tab for Number of defective CFLs:
=COUNTIF(B4:B153,0)....
Mathematics, 16.04.2020 00:13 bellarides
Look at the formula in the Example tab for Number of defective CFLs:
=COUNTIF(B4:B153,0). This formula scans the values in cells B4 through B153 (life spans) to check whether the value is 0. âIFâ so, it âCOUNTSâ it (adds 1 to a total).
Return to the Test Sample tab, and enter a formula like this into cell E5. How does the resulting value compare with your hand count of defective bulbs?
Again on the Test Sample tab, enter a spreadsheet formula to calculate the proportion of defective CFLs in the test sample: the ratio of defective bulbs as a fraction of the sample. Write down the formula you used and the result you got.
Answers: 3
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