The index model has been estimated for stocks A and B with the following results:
R_A= 0.01 + 0.8R_M+ e_A
R_B= 0.02 + 1.2R_M+ e_B
Β_M= 0.20 β(e_A) = 0.20 β (e_B) = 0.10
The standard deviation for stock A is __________.

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The Answer of The index model has been estimated for stocks A and B with the following results: R_A= 0.01 + 0.8R_M+ e_A R_B= 0.02 + 1.2R_M+ e_B Β_M= 0.20 β(e_A)= 0.20 β (e_B)= 0.10 The standard deviation for stock A is __________. A)0.0656 B)0.0676 C)0.2561 D)0.2600 E)none of the above

The Index Model Has Been Estimated for Stocks a and B