2220741
2220741 2220741
  • 03-03-2021
  • Mathematics
contestada

Mark earned a 64 on his last science quiz. If Mark’s z-score was -2.8 and the standard deviation was 10, find the mean grade on the quiz.

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tmpiiiii761
tmpiiiii761 tmpiiiii761
  • 03-03-2021

Answer:

he score is 2.15 standard deviations above the mean.

Step-by-step explanation:

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