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##### ex. 2.12 An exam produced grades with a mean of 7...

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Solution

**Question**

ex. 2.12 An exam produced grades with a mean of 70 and a standard deviation of 11.2. (a) Find the z-score for each value of x = 53. (Give your answer correct to two decimal places.) (b) Find the z-score for each value of x = 77. (Give your answer correct to two decimal places.) (c) Find the z-score for each value of x = 82. (Give your answer correct to two decimal places.) (d) Find the z-score for each value of x = 92. (Give your answer correct to two decimal places.)

Paper#13361 | Written in 18-Jul-2015

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