A Teacher Grading Statistics Homeworks Finds That None of the Students

question 108

Multiple Choice

A teacher grading statistics homeworks finds that none of the students has made more than three errors.14% have made three errors,25% have made two errors,and 39% have made one error.Find the standard deviation of the number of errors in students' statistics homeworks.

• A)0.97
• B)0.93
• C)0.89
• D)1.07
• E)0.82

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