Suppose you are working with a data set that is normally distributed, with a mean of 250 and a standard deviation of 46. Determine the value of x from the following information. (Round your answers and z values to 2 decimal places, e.g. 1.25.) (a) 80% of the values are greater than x. (b) x is less than 16% of the values. (c) 21% of the values are less than x.

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