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The average height of a group of five students was 165 cm.One student of height 160 cm left the group.After two years,the height of the remaining students increase by 2 cm,3 cm,2 cm and 4 cm.The new mean height is ?->(Show Answer!)
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1. The average height of a group of five students was 165 cm.One student of height 160 cm left the group.After two years,the height of the remaining students increase by 2 cm,3 cm,2 cm and 4 cm.The new mean height is





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