1.

The average marks in statistics of 10 students of a class were 81. A new studentadmission who scored 92 marks, whereas existing students left the collegescored 56 and 36 marks. What is the new average marks?(b) 90 marks(a81 marks(d) 79.7 marks82.8 marksConsider the following frequency distribution of the height of 60 studentsclass:150-155 155-160 160-165 165-170 170-1751 175-98Height (in cm)1013​

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