A box contains 31 calculators, 5 of which are defective. 5 calculators are selected at random from the box. Write your answers in the first box as a simplified fraction and in the second box as a decimal rounded to 9 decimal places. What is the probability that all of the selected calculators are defective? The probability that all of the selected calculators are defective is or What is the probability that none of the selected calculators are defective? The probability that none of the selected calculators are defective is or

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