the weights of five children in a group are 25 ,35, 35 ,28 ,and 32. find their mean weight and median weight .after a year was found that they all gain 3kg each find the new mean weight
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Answer:
31,32,34
Step-by-step explanation:
SUM OF OBSERVATIONS = (25+35+35+28+32)=155
NUMBER OF OBSERVATIONS= 5
THEREfORE, MEAN=155/5=31
ARRANGING IN ASCENDING ORDER,
25,28,32,35,35
MEDIAN= (n+1)/2 th observation = 3rd observation= 32
as we know, total increases when equal is added to each no
mean(new)=31+3=34
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