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In a memory test, the test subjects are shown 625 objects and are asked after two hours to name the objects. The historical records show thit test subjects remember 80% 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. (b) Find the standard deviation of p. р. (c) Compute an approximation for P(p <0.76), which is the probability that fewer than 76% of the objects are remembered by a test subject. Round your answer to four decimal places.

In a memory test, the test subjects are shown 625 objects and are asked after two hours to name the objects. The historical records show thit test subjects remember 80% 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. (b) Find the standard deviation of p. р. (c) Compute an approximation for P(p <0.76), which is the probability that fewer than 76% of the objects are remembered by a test subject. Round your answer to four decimal places.

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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In a memory test, the test subjects are shown 625 objects and are asked after two hours to name the objects. The historical records show thit test subjects remember 80% 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. (b) Find the standard deviation of p. (c) Compute an approximation for P(p<0.76), objects are remembered by a test subject. Round your answer to four decimal places. which is the probability that fewer than 76% of the Continue Submit Assignment O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility ?? BU tv MacBook Air 23 80 DII DD F4 F6 F7 F8 F9 F10 F11 12 %24
Transcribed Image Text:In a memory test, the test subjects are shown 625 objects and are asked after two hours to name the objects. The historical records show thit test subjects remember 80% 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. (b) Find the standard deviation of p. (c) Compute an approximation for P(p<0.76), objects are remembered by a test subject. Round your answer to four decimal places. which is the probability that fewer than 76% of the Continue Submit Assignment O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility ?? BU tv MacBook Air 23 80 DII DD F4 F6 F7 F8 F9 F10 F11 12 %24
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