The table shows the results of a survey that asked 2850 people whether they were involved...

The table shows the results of a survey that asked 2850 people whether they were involved in any type of charity work. A person is selected at random from the sample. Find the probability of each event. Give your answers as simplified fractions or as decimals rounded to 3 places.

	Frequently	Occasionally	Not at all	Total
Male	221	456	795	1472
Female	207	430	741	1378
Total	428	886	1536	2850

a) What is the probability that the person is frequently or occasionally involved in charity work?

b) What is the probability that the person is female or not involved in charity?

c) What is the probability that the person is male given that they are occasionally involved in charity work?

d) What is the probability that the person is female and frequently involved in charity work?

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