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Mathematics, 17.01.2020 21:31 24dewitt

The range rule of thumb roughly estimates the standard deviation of a data set as

a. s equals startfraction range over 4 endfraction .
b. s equals (mean )minus 2 times (standard deviation ).
c. s equals (mean )plus 2 times (standard deviation ).
d. s equals startfraction range over 2 endfraction .

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