Three sixth grade, two seventh grade, and five eighth grade students were randomly arranged in a row, then the probability that the seventh grade students are next to each other is O a1/15 Ob.1/5 Oc.1/42 od.5/90 O e. 15/90

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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Three sixth grade, two seventh grade, and five eighth grade
students were randomly arranged in a row, then the
probability that the seventh grade students are next to each
other is
O a 1/15
Ob.1/5
O c. 1/42
O d.5/90
O e. 15/90
Transcribed Image Text:Three sixth grade, two seventh grade, and five eighth grade students were randomly arranged in a row, then the probability that the seventh grade students are next to each other is O a 1/15 Ob.1/5 O c. 1/42 O d.5/90 O e. 15/90
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