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A probability provides a quantitative description of the likely occurrence of a particular event.

2
votes
1answer
“Determine probability that a purchase is paid for by debit card OR credit card given that the customer paid over $100 for it” [2 events and 1 condition] “Compute the probability that a child … me off because I know OR means addition rule and in conditional probability, one must use multiplication rule. …
asked Jul 12 '13 by aboabo
2
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1answer
100 0.03 0.23 0.14 0.4 TOTAL 0.17 0.47 0.36 1 The question is: “Find the probability that a debit card purchase was $20 and over”. In working … this question, I became confused. I came up with several possible answers. I would like to know which one is right. How do I work out this question? Is the probability: $0.18+0.14=0.32$ $ \frac …
asked Jul 12 '13 by aboabo