30. Solving a chemistry problem
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49. The content of manganese in four samples of ferromanganese according to the results
analyzes is, %:
a) 21.34; 21.32; 21.31; 21.35;
b) 34.45; 34.41; 34.42; 34.43;
c) 50.17; 50.14; 50.13; 50.16;
d) 65.57; 65.56; 65.59; 65.60.
Calculate the standard deviation in determining the manganese content.
analyzes is, %:
a) 21.34; 21.32; 21.31; 21.35;
b) 34.45; 34.41; 34.42; 34.43;
c) 50.17; 50.14; 50.13; 50.16;
d) 65.57; 65.56; 65.59; 65.60.
Calculate the standard deviation in determining the manganese content.
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