Abstract
In the crisp case, it is well known that the sample mean converges in probability to the population mean. This fact is generally known as the weak law of large numbers and is a direct consquence of the Chebyshev's inequality. If we substitute the fuzzy measure for the probability measure and fuzzy integral for the Lebesgue integral, then what can we say about the Chebyshev's inequality and weak law of large numbers? This is the focal point of this article.