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Mathematical Methods — Question 1

QCAA 2021, Paper 2 · 1 mark

Q1 · 2021 · Technology-activeSimple familiar1 mark

QUESTION 1

The scores obtained on a test can be assumed to be normally distributed with a mean of 102 and a standard deviation of 19. What proportion of scores are over 113?
(A)
0.2813
(B)
0.5789
(C)
0.7187
(D)
0.8216
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