the mean height of 8 students is 152 CM .Two more students of height 143 CM and 156 CM join the group What is the new mean height. plz help me
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refer the above attachment.
hope it helps....
hope it helps....
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prerna0001:
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Answer:mean height of eight students=152cm
152×8=1216
New Sum=1216+143+156=1515
Total students=10
New mean = 1515\10
= 151.5 cm
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