Find the z score corresponding to x

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A normal distribution has μ = 26 and σ = 5.

(a) Find the z score corresponding to x = 21. (Enter an exact number.)

(b) Find the z score corresponding to x = 38. (Enter a number.)

(c) Find the raw score corresponding to z = -2. (Enter an exact number.)

(d) Find the raw score corresponding to z = 1.7. (Enter a number.)

Raul received a score of 77 on a history test for which the class mean was 70 with a standard deviation of 10. He received a score of 76 on a biology test for which the class mean was 70 with standard deviation 10. On which test did he do better relative to the rest of the class?

Reference no: EM132318295

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