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What did Ariana earn on her examif she had a z score of 0.63, given a mean of 80 and a standard deviation of 13?
What did Ariana earn on her examif she had a z score of 0.63, given a mean of 80 and a standard deviation of 13?
a. 71.81
b. 63.4
c. 37.4
d. 88.19
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