Q4) Data of 100 students' score was orded. The arithmetic mean and standard viation were 60 and 15 respectively. After checking, it was found that there was an or recording the scores of 2 students. The correct scores were 27 and 40, while the :correct scores were 72 and 45. Thus The correct standard deviation is 11.1678 O 11.2541

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Q4) Data of 100 students' score was
recorded. The arithmetic mean and standard
deviation were 60 and 15 respectively. After
checking, it was found that there was an
error recording the scores of 2 students. The
incorrect scores were 27 and 40, while the
:correct scores were 72 and 45. Thus
The correct standard deviation is
11.1678 O
11.2541
12.3768 O
none of all above O
Transcribed Image Text:Q4) Data of 100 students' score was recorded. The arithmetic mean and standard deviation were 60 and 15 respectively. After checking, it was found that there was an error recording the scores of 2 students. The incorrect scores were 27 and 40, while the :correct scores were 72 and 45. Thus The correct standard deviation is 11.1678 O 11.2541 12.3768 O none of all above O
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