Question

In a sample of 495 items, 275 are
found to be defective. Find the
probability of an item selected at
random being not defective. give me direct answer...​

Answer 1

sample space =495

defective items = 275

NIN DEFECTIVE ITEMS = 495-275 = 220

probability of getting in defective = 220/495

Step-by-step explanation:

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Answer 2

Answer:

$\frac{4}{9}$

Step-by-step explanation:

total number of samples: 495

number of defective samples: 275

so, number of non defective samples= 495-275=220

probability of being non defective= number of non defective/total number

                                                          = 220/495

                                                           =$\frac{4}{9}$

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