the average height of a family of 5 is 150 cm if the height of 4 family members is 153 ,150,151 and 152 find the height of fifth numbers
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Answer:
144
Step-by-step explanation:
E(x)= 150
153+150+151+152+x= 150*5
606+x=750
x= 750-606
x= 144
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