Standard Deviation Answers
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Abby is collecting rainfall data. She finds that one value of the data set is a high-value outlier. Which statement must be true?
A
Abby will use a different formula for calculating the standard deviation.B
The outlier will increase the standard deviation of the data set.C
The spread of the graph of the data will not change.D
Abby will not use the mean when calculating the standard deviation.2
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The monthly mean salaries and standard deviations of four college students are given below.StudentMeanStandard DeviationClarissa$34512.53Abi$5988.99Kaila$81215.29Shenika$2087.67Which statement must be true?
A
The monthly salary of Shenika is less spread out than the monthly salary of Clarissa.B
The monthly salary of Kaila is less spread out than the monthly salary of Abi.C
The monthly salary of Abi is less spread out than the monthly salary of Shenika.D
The monthly salary of Clarissa is less spread out than the monthly salary of Abi.3
The mean of a set of credit scores is and . Which credit score is within a z-score of 3.3?
A
634B
640C
720D
750Did you find these answers helpful?
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