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Maths and Probability. For a certain race meeting, a jockey is booked to ride six (6)...

Maths and Probability.
For a certain race meeting, a jockey is booked to ride six (6) horses in a six (6) seperate races. The probability of each of the six rides of winning is the following:
1/7, 1/5, 1/4.5, 1/4, 1/4, 1/25
What is the probability of the following:
(a) At least one win
(b) At least two wins
(c) At least three wins
(d) Exactly three wins
(e) Zero wins

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