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zloy xaker [14]
3 years ago
15

The probability that Sara wins a raffle is given by the expression n/n+3

Mathematics
1 answer:
aksik [14]3 years ago
5 0

Answer:

3/(n + 3)

Step-by-step explanation:

The given probability that Sara wins a raffle draw, P = n/(n + 3)

Given that the sum of all probabilities is 1, we get

The probability that Sara does not win, Q = 1 - P

Therefore;

Q = 1 - n/(n + 3) = (n + 3) - n/((n + 3) = 3/(n + 3)

The probability that Sara does not win, Q = 3/(n + 3)

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Critical t-value for 99% confidence :

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