In a memory test, the test subjects are shown 300 objects and are asked after two hours to name the objects. The histori records show that test subjects remember 75% of the objects after two hours. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p, where p is the proportion of objects that are remembered by a test subject. Aa (b) Find the standard deviation of p. (c) Compute an approximation for P (p <0.71), which is the probability that fewer than 71% of the objects are remembered by a test subject. Round your answer to four decimal places.

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