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Using the calculator cdf function, what is the percent of data that falls in between 20 and 29.5 if the mean is 27 and the standard deviation is 5.2?
(a) 60%
(b) 75%
(c) 90%
(d) 12%

Respuesta :

Hmm, I'd guess around 60%, but that's just a guess. :(

Wait, probably 75% or 90%, not 60%. Disregard the first line :)

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