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Mathematics, 15.10.2019 19:30 SavgeKid7578

Given a mean of 61.2 and a standard deviation of 21.4, within how many standard deviations of the mean do the values 45,78,62,90, and 31 fall?
a.0
b.1
c.2
d.3

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Given a mean of 61.2 and a standard deviation of 21.4, within how many standard deviations of the me...

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