Identify the type of sampling used. The names of 90 employees are written on 90 cards. The cards are placed in a bag, and three names are picked from the bag. What sampling technique was used? OA. simple random OB. cluster OC. stratified D. systematic OE. convenience

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A: given data P(A') =0.4P(B') = 0.5P(A∩B) = 0.4

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