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5 May, 13:08

Kris wanted to understand whether studentstudents at her school were in favor of an extended school day. She surveyed some students and displayed the results in the table below:

In favor

Opposed

Undecided

Grade 9

6

4

8

Grade 10

10

11

9

Grade 11

12

15

11

Grade 12

15

6

14

If the principal randomly selects a student in grade 10 from this survey, what is the probability that the student is opposed to extending the school day?

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Answers (1)
  1. 5 May, 13:35
    0
    The probability should be 36.67% if the number of people in tenth grade who replied 'opposed' is 11 and the principal is only selecting from grade 10.
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