which set has the smallest
difference between the biggest number and the smallest
number in the set?
8. 23. 14. 10
C
12 18 20 19
2,7 14,7
22.3217 21
Answers
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Answer:
lollllllllllllllll just kidding
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Answer:
Marks of 12 students in a unit test are given as 4 , 21 , 13 , 17 , 5 , 9 , 10 , 20 , 19 , 12 , 20 , 14 . Assume a mean and calculate the arithmetic mean of the data. Assume another number as mean and calculate the arithmetic mean again. Do you get the same result? Comment!
Step-by-step explanation:
SOLUTION
Let assumed mean be 13
Therefore, Arithmetic mean
= 13 + ( {4 - 13} + {21 - 13} + {13 - 13} + )
( {17 - 13} + {5 - 13} + {9 - 13} + )
( {10 - 13} + {20 - 13} + {19 - 13} +)
( {12 - 13} + {20 - 13} + {14 - 13} )
12
= 13 + 8
12
= 13 + 0.67
= 13.67
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