What is the standard deviation (s) of the following set of scores? 10, 15, 12, 18, 19, 16, 12

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Question:

What is the standard deviation (s) of the following set of scores? 10, 15, 12, 18, 19, 16, 12

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Answer:standard deviation =3.11Step-by-step explanation:data given is ungrouped datastandard deviation =√ [∑ (x-μ)² / n]mean (μ)=∑x/n            = [tex]\frac{10+15+12+18+19+16+12}{7}[/tex]           =14.57x-μ   for data 10, 15, 12, 18, 19, 16, 12 will be                      -4.57, 0.43, -2.57, 3.43, 4.43,1.43, -2.57(x-μ)² will be 20.88, 0.1849, 6.6049, 11.7649,19.6249, 2.0449, 6.6049∑ (x-μ)² will be = 67.7049standard deviation = √(67.7049 / 7)                       =3.11                      

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