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Mathematics, 19.03.2020 00:43 lovehelping1564
A mail carrier randomly inspects every 20th letter being mailed. Out of 600 letters in the sample, 3 were open. There were 18,000 letters being mailed. Make an inference about the number of all the letters being mailed that were open.
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A mail carrier randomly inspects every 20th letter being mailed. Out of 600 letters in the sample, 3...
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