The quarterly returns for a group of 51 mutual funds with a mean of 1.5% and a standard deviation of 5.3% can be modeled by a Normal model. From these funds, find the cutoff return value(s) that would separate the a) highest 20% b) lowest 30% c) middle 80% d) highest 70% a) Select the correct choice and fill in any answer boxes in your choice below. (Round to two decimal places as needed) A. X< OB >% x> OC.

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