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givi [52]
2 years ago
15

Pls can you solve this question from hegartymaths?

Mathematics
1 answer:
Sergeeva-Olga [200]2 years ago
8 0

The area of a circle with radius r is πr². So you need to find r such that

πr² = 56π

⇒   r² = 56

⇒   r = √56 = 2√14

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Answer:

0.026

Step-by-step explanation:

Given the result of 10 coin flips :

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Let :

B = biased coin

B' = non-biased coin

E = event

Probability that it is the biased coin:

P(E Given biased coin) / P(E Given biased coin) * P(E Given non-biased coin) * P(non-biased coin)

P(E|B)P(B) / (P(E|B)*P(B) + P(E|B')P(B')

([(0.75^3) * (0.25^7)] * 0.5) /([(0.75^3) * (0.25^7)] * 0.5) + (0.5^10) * 0.5

0.0000128746 / 0.00050115585

= 0.0263671875

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3 years ago
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lukranit [14]

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1/8

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