Jacy and Bella began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Jacy took a test in Math and earned a 78.2, and Bella took a test in Social Studies and earned a 67.7. Use the fact that all the students' test grades in the Math class had a mean of 74.7 and a standard deviation of 10.1, and all the students' test grades in Social Studies had a mean of 60 and a standard deviation of 8.6 to answer the following questions. a) Calculate the z-score for Jacy's test grade. Z= b) Calculate the z-score for Bella's test grade. Z= c) Which person did relatively better? Jacy Bella They did equally well.
Jacy and Bella began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Jacy took a test in Math and earned a 78.2, and Bella took a test in Social Studies and earned a 67.7. Use the fact that all the students' test grades in the Math class had a mean of 74.7 and a standard deviation of 10.1, and all the students' test grades in Social Studies had a mean of 60 and a standard deviation of 8.6 to answer the following questions. a) Calculate the z-score for Jacy's test grade. Z= b) Calculate the z-score for Bella's test grade. Z= c) Which person did relatively better? Jacy Bella They did equally well.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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