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Posted by on Saturday, November 30, 2013 at 7:22pm.

(a) Find P(121 ¡Ü X ¡Ü 139), the probability that a randomly chosen girl at the start of 1st grade is between 121 and 139 centimeters tall. (Round your answer to three decimal places.)
P(121 ¡Ü X ¡Ü 139) = 1

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