The table below gives information, broken down by year in college, about the number of credit hours for which students are enrolled. What is the probability that a student selected at random is a sophomore or is taking between 11 and 13 hours? Round to two decimal places. 14 or more hours 11-13 hours 10 or less hours TOTALS Freshmen 237 377 386 1,000 Sophomores 327 360 423 1,110 Juniors 57 325 162 644 Seniors 114 276 92 482 TOTALS 835 1,338 1,063 3,236

The table below gives information, broken down by year in college, about the number of credit hours for which students are enrolled. What is the probability that a student selected at random is a sophomore or is taking between 11 and 13 hours? Round to two decimal places. 14 or more hours 11-13 hours 10 or less hours TOTALS Freshmen 237 377 386 1,000 Sophomores 327 360 423 1,110 Juniors 57 325 162 644 Seniors 114 276 92 482 TOTALS 835 1,338 1,063 3,236

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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	14 or more hours	11-13 hours	10 or less hours	TOTALS
Freshmen	237		377		386	1,000
Sophomores	327		360		423	1,110
Juniors	57		325		162	644
Seniors	114		276		92	482
TOTALS	835		1,338		1,063	3,236

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