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deff fn [24]
2 years ago
9

Find the mean given normal curve

Mathematics
1 answer:
Ilya [14]2 years ago
5 0

Answer:

66

Step-by-step explanation:

84 = mean + 3sd

60 = mean - sd

sd = mean - 60

84 = mean + 3(mean - 60)

84 = mean + 3mean - 180

264 = 4mean

mean = 66

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