To explain: Is it adequate to have four left-handed desks in a classroom where the average size of the class is 30 and the percentage of the left-handed population is about 11%.
The probability that there are at most four left-handed students in a classroom is 0.7705. Thus, it is adequate to have 4 left-handed desks in a classroom.
Given:
The total number of students in a class
The probability that a student is left-handed is
The number of left-handed desks in the classroom
Concept used:
The
Calculation:
From the given information
Total number of students in a class
The probability that a student is left-handed
The probability that the number of left-handed students in the classroom is at most 4 is calculated as shown below
Interpretation:
The probability that there are 4 or less than 4 left-handed students in the classroom is 0.7705 which is closer to 1. Thus, it looks adequate to have 4 left-handed desks in a classroom.
Chapter 11 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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