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Costco offers two types of memberships: Gold Star members and Executive members

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Costco offers two types of memberships: Gold Star members and Executive members. Suppose that the probability of having a check-out total of $200 or less is 0.57. Further suppose the probability of having a check-out total of $200 or less and being a Gold Star member is 0.41. If the probability of being a Gold Star member or having check-out total of $200 or less is 0.64, determine the probability of being a Gold Star member.