Fundamental Analytics and Business Intelligence As per the given question: B is taken as the event that message is blocked and S is taken as the event that message is a spam P(S)= 0.80 ⇒P(S̅)= 0.20 For High Security Mode: For Low Security Mode: P (B|S)= 0.90 P (B|S)= 0.10 P (B|S)= 0.10 P (B|S)= 0.90 P (B|S) = 0.04 P (B|S) = 0.96 P (B|S) = 0.96 P (B|S) = 0.04 a. PH (B and S) = P(B|S) * P(S) = 0.10 * 0.20 = 0.02 PH = P (B…
Fundamental Analytics and Business Intelligence Explain the concept of physical data independence and its importance in database systems Data independence described as the property of database management system that helps the user in changing the schema of database at one level of the database system without need to change the schema at next and higher level. Data independence help in keeping the data separated from all different progr…
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