(Answered) A calculus exam has a mean of micro 73 and a standard

Statistics

A calculus exam has a mean of µ = 73 and a standard deviation of σ = 4. Trina's score on the exam was 79, giving her a z-score of +1.50. The teacher standardized the exam distribution to a new mean of µ = 70 and standard deviation of σ = 5. What is Trina's z-score for the standardized distribution of the calculus exam?

a. z = +.50

b. z = +2.25

c. z = +.75

d. z = +1.50

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