The average monthly income of the employees of Fashion Head Incorporated was computed to be equal to P5,500 with a standard deviation of P550. If there are 900 employees in that company, and assuming normality of the monthly income, then determine the following: a) The number of employees receiving a monthly income of P5,500 and above. b) The number of employees earning a monthly income between P5,000 to P7,000.

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