Refer to the distribution of home sales prices with mean of k300,000 and standard deviation of k50,000. (1) Determine the price range in which at least 75% of the houses sold. (ii) Determine the minimum percentage of the houses that should sale for prices between k150,000 and k450,000. (iii) Determine the minimum percentage of houses that should sale for prices between k170,000 and k430,000.

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