Answered: a) Calculate the z-score for Lucas's…

Math

Probability

a) Calculate the z-score for Lucas's test grade. z=z= b) Calculate the z-score for Alex's test grade. z=z=

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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Question

Lucas and Alex began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Lucas took a test in Math and earned a 73.4, and Alex took a test in English and earned a 70.5. Use the fact that all the students' test grades in the Math class had a mean of 74.1 and a standard deviation of 11.3, and all the students' test grades in English had a mean of 60.9 and a standard deviation of 8.1 to answer the following questions.

a) Calculate the z-score for Lucas's test grade.
z=z=

b) Calculate the z-score for Alex's test grade.
z=z=

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