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ruslelena [56]
3 years ago
11

O COUNTING AND PROBABILITY

Mathematics
1 answer:
valina [46]3 years ago
4 0

Answer:

a. Odds = \frac{3}{7}

b. Odds = \frac{7}{3}

Step-by-step explanation:

Given

n(Black) = 7

n(Grey) = 2

n(White) = 1

n(Total) = 10

Solving (a): Odds against winning

Since, the arrow must stop at black, then

The odds against winning is calculated as thus:

Odds = \frac{n(Total) - n(Black)}{n(Black)}

Odds = \frac{10 - 7}{7}

Odds = \frac{3}{7}

Solving (b): Odds in favor of winning

Since, the arrow must stop at black, then

The odds is calculated as thus:

Odds = \frac{n(Black)}{n(Total) - n(Black)}

Odds = \frac{7}{10 - 7}

Odds = \frac{7}{3}

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