Students at Chelsea High can sign up for one social studies class each year. The numbers in each grade level that sign up for various classes for the next school year are given below Grade US History Civics World History Economics Total 10th 75 10 125 5 215 11th 130 85 75 60 350 12th 35 150 50 105 340 Total 240 245 250 170 905 Part D: What would be the probability that a student will take Civics, that a 10th-grader will take either US History or World History, that a student will take Economics given that he or she is in the 10th grade? Part e: Consider the events "A student takes Civics" and "A student is a 12th-grader." Are these events independent?

Students at Chelsea High can sign up for one social studies class each year. The numbers in each grade level that sign up for various classes for the next school year are given below Grade US History Civics World History Economics Total 10th 75 10 125 5 215 11th 130 85 75 60 350 12th 35 150 50 105 340 Total 240 245 250 170 905 Part D: What would be the probability that a student will take Civics, that a 10th-grader will take either US History or World History, that a student will take Economics given that he or she is in the 10th grade? Part e: Consider the events "A student takes Civics" and "A student is a 12th-grader." Are these events independent?

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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Grade	US History	Civics	World History	Economics	Total
10th	75	10	125	5	215
11th	130	85	75	60	350
12th	35	150	50	105	340
Total	240	245	250	170	905

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