Christos
  • Christos
A sample consists of 17 data entries and the mean is 6.5 . A new data entry, which has the value of 3, is added to the sample. Find the mean of the new sample.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Do you want me to find the 17 data entries? /_^
anonymous
  • anonymous
Do you need a solid 6.5? or could it come out as 6.47 and u round up the rest?
anonymous
  • anonymous
I have 2 sets of digits where I get 6.52 and 6.47, just let me know if you want to know what they are.

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anonymous
  • anonymous
6.3055556..\[((\sum_{i=1}^{i=17}X i ) + 3)/18= ? \]
anonymous
  • anonymous
you know \[(\sum_{1}^{17} X i )/17 = 6.5 => (\sum_{1}^{17} X i ) = 17*6.5 = 110.5 ; substitute this \in the previous equation..you will get ur new mean :D\]

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