Mathematics, 01.05.2021 21:30 juniieb
Scores on an achievement test had an average of 70 and a standard deviation of 10. Serena's
score was 85. Assuming the scores have approximately a normal distribution, about what
proportion of students scored lower than Serena?
A.0.93
B.0.07
C.0.84
D.0.69
Is my answer correct? And particularly the graph?
Answers: 3
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Scores on an achievement test had an average of 70 and a standard deviation of 10. Serena's
score...
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