find the mean 81, 74,69,73,91,55,61
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Answered by
0
Answer:
add all the numbers and divide by 7
Answered by
2
Answer:
mean = sum of observations / no. of observations
= ( 81 + 74 + 69 + 73 + 91 + 55 + 61 ) / 7
= 504/7
= 72
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