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7 May, 06:55

The graph below shows three different normal distributions,

50

60

70

80

90

100

Which statement must be true?

Each distribution has a different mean and the same standard deviation

Each distribution has a different mean and a different standard deviation.

Each distribution has the same mean and the same standard deviation

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  1. 7 May, 10:32
    0
    Answer: The answer would be D

    Step-by-step explanation:

    This is because all of the models on the graph show in the same place having the same middle but at different heights but not the same standard deviation.
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