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The table below shows the results of a survey that asked 2873 people whether they are involved in any type of charity work. A person is selected random from the sample.
Frequently Occasionally Not at All Total
Male 225 458 793 1476
Female 203 450 744 1397
Total 428 908 1537 2973
(a) Find the probability that the person is frequently or occasionally involved.
(b) Find the probability that the person is female or not involved in charity work at all.
(c) Find the probability that the person is male and frequently involved in charity work.
(d) Find the probability that the person is female or not frequently involved in charity work.
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