a. The mean monthly rent of houses in a certain neighborhood is RM 1500, and the standard deviation is RM 300. Using Chebyshev's Theorem, find the minimum percentage of houses with monthly rent between RM 900 and RM 2100. b. The distribution of monthly rent of houses in the neighborhood has a bell-shaped curve. Using empirical rule, find the approximate percentage of houses with monthly rent between RM 900 and RM 2100.

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