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Standard Deviation Problems

Standard Deviation Problems
Standard Deviation Problems
  • Page 1
 1.  

Is a value two standards deviation from the mean more likely to occur than a value three standard deviations from the mean?



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 2.  

Find the variance and standard deviation for the data 10, 14, 14, 16, 18, 20, 12, 12, 10, 11.



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 3.  

Can the variance be a negative number?



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 4.  

Find the value of z so that the area under the standard normal curve from 0 to z is 0.4761 (approximately) and z is positive. Round your answer to 2 decimal places.



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