Mathematics, 27.01.2021 03:50, adrianaa34

A school system employs teachers at salaries between $30,000 per year and $60,000 per year. The teachers' union and the school board are negotiating the form of next year's increase in the salary schedule. Suppose that every teacher is given a flat $1000 raise, a) will the mean salary change? If so, will it go up or down? Explain.
b) Will the median salary change? If so will it go up or down? Explain.
c)Will the standard deviations of the salaries change? If so will it go up or down? Explain.

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A school system employs teachers at salaries between $30,000 per year and $60,000 per year. The teac...