Scores on a test are normally distributed with a mean of 76 and a standard deviation of 6.Using the z-score table, estimate the probability a randomly selected student scored above 70.Select one:O a. 0.84O b.0.98O c.0.2O d. 1.20

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Answered: Scores on a test are normally…

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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A distribution of values is normal with a mean of 120 and a standard deviation of 4.Find the interval containing the middle-most 68% of scores: Enter your answer using interval notation. Example: (2.1,5.6)

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Scores on a test are normally distributed with a mean of 76 and a standard deviation of 6. Using the z-score table, estimate the probability a randomly selected student scored above 70. Select one: a. 0.84 O b. 0.98 0.2 O d. 1.20 C.