Answer :
The beta of Drucker Corporation's stock Beta is 0.14.
The beta of Drucker Corporation's stock can be calculated using the following formula:
Beta = (Covariance of Drucker Corporation's returns and the market's returns) / (Variance of the market's returns)
Using the data provided, we can calculate the beta of Drucker Corporation's stock by first calculating the covariance and variance of the market's returns, and then calculating the covariance of Drucker Corporation's returns and the market's returns.
Covariance of the market's returns = ( (-9% - 0%) + (8% - 0%) + (23% - 0%) ) / 3 = 8%
Variance of the market's returns = ( (-9% - 0%)^2 + (8% - 0%)^2 + (23% - 0%)^2 ) / 3 = 99%
Covariance of Drucker Corporation's returns and the market's returns = ( (-18% - 0%) + (10% - 0%) + (30% - 0%) ) / 3 = 14%
Therefore, Beta = 14% / 99% = 0.14
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