Final answer:
In any distribution, at least 89 percent of data will be within 3 standard deviations of the mean according to Chebyshev's Rule.
Step-by-step explanation:
The question asks what percent of data will be within 3 standard deviations of the mean in any distribution. This can be answered using Chebyshev's Rule, which states that at least 89 percent of data will fall within three standard deviations of the mean, regardless of the shape of the distribution. When referring specifically to a bell-shaped distribution, the Empirical Rule applies, which suggests about 99.7 percent of the data falls within this range. Since the question pertains to any distribution, Chebyshev's minimum of 89 percent is the correct figure to quote.