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saul85 [17]
3 years ago
10

The numbers of regular season wins for 10 football teams in a given season are given below. Determine the​ range, mean,​ varianc

e, and standard deviation of the population data set. ​, ​, ​, ​, ​, ​, ​, ​, ​, The range is 13 13. ​(Simplify your​ answer.) The population mean is nothing. ​(Simplify your answer. Round to the nearest tenth as​ needed.) The population variance is nothing. ​(Simplify your answer. Round to the nearest hundredth as​ needed.) The population standard deviation is
Mathematics
1 answer:
Tems11 [23]3 years ago
5 0
Answer:
The range is: 13. The population mean is: 8.5. The population variance is: 15.85. The population standard deviation is: 3.9812.
Step-by-step explanation:
The range: 15 - 2 = 13
The population mean is:
Mean = ( 2 + 9 + 15 + 5 + 14 + 8 + 11 + 7 + 4 + 10 ) / 10 = 8.5
The population variance ( S² or Sigma² ):
S ² = 1/10 · ( ( 2 - 8.5 )² + ( 9 - 8.5 )² + ( 15 - 8.5 )² + ( 5 - 8.5 )² + ( 14 - 8.5 )² + ( 8 - 8.5 )² + ( 11 - 8.5 )² + ( 7 - 8.5 )² + ( 4 - 8.5 )² + ( 10 - 8.5 )² )
S ² = 15.85
The population standard deviation:
S = √(S²) = √15.85 = 3.9812
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