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A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which are defective. Step 1 of 2: Suppose a sample of 1762 floppy disks is drawn. Of these disks, 70 were defective. Using the data, estimate the proportion of disks which are defective. Enter your answer as a fraction or a decimal number rounded to three decimal places.

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vlatkostojanovic

Answer:

We conclude that the proportion faulty floppy disks is 3.973%.

Step-by-step explanation:

We have the sample of 1762 floppy disks. Of these disks, 70 were defective.

We will use proportion to calculate the proportion of faulty floppy disks. We have the following proportion:

[tex]1762:100\%=70:x\%\\\\1762x=70\cdot 100\\\\x=\frac{7000}{1762}\\\\x=3.973\%[/tex]

We conclude that the proportion faulty floppy disks is 3.973%.

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