In a school, IQ of 250 students of Class X are given in the following frequency distribution:
IQ
120-130 130-140 140-150 150-160 160-170
Number of students 10 80
100 50 10
Find the mean IQ of students.
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the full form of IQ is intelligence quotient. what is total Score divide from several standardized test designed to assess human intelligence...
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