"Master," the Chief Eunuch managed to splutter in his shock at this amazing concept, but his Master had spoken and it would be done, though where he would find educated eunuchs was going to be a problem. Then Sharifa piped up, ~Father, what is Chebyshev's Inequality?~ The Emir stared at her, then smiled broadly and switched to English, "It states that the probability that the outcome of a random variable with standard deviation sigma is no less than 'a' times sigma away from its mean, is no more than one over 'a' squared. How much of that do you understand?" "Well, I know what a random variable is, and a standard deviation, but I would have to think about what you said." "What did I say?" asked the Emir, curious to test how retentive her memory was. "You said that Chebyshev's Inequality states that the probability that the outcome of a random variable with standard deviation sigma is no less than 'a' times sigma away from its mean, is no more than one over 'a' squared." She thought for a moment and then added, "It sounds right." "What do you mean, 'it sounds right'?" "I can't explain," she answered, "It's just that when something is true it seems to sound right and other things just sound wrong."