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Kobotan [32]
4 years ago
11

A compound experiment consists of tossing a coin, drawing a letter at random from the alphabet, and then tossing two coins. What

is the probability of getting a tail, the letter T, and then two tails?
Mathematics
2 answers:
Artemon [7]4 years ago
7 0
We should each take these probabilities first individually.
Probability of tails in a coin toss = 1/2
Probability of <span>drawing letter T from the alphabet = 1/26
Probability of 2 tails in 2 coin toss = 1/4
Sample space = {HH, TT, HT, TH}

Add these together since these events happen after another = 1/2 + 1/26 / + 1/4 = 41/52

The final probability is 41/52</span>
leonid [27]4 years ago
6 0
The answer should be "1/208"
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Andre45 [30]

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4 years ago
When a person is breathing normally the amount of air in their lawns varies sinusoidally. When full Karen’s lungs hold 2.8 L of
makkiz [27]

Answer:

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Let the function of quantity in the lung of air be A(t)

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so, A(t) = Amax sin t + b

A(t) = 2.8t⇒ max

A(t) = 0.6t ⇒ min

max value of A(t) occur when sin(t) = 1

and min value of A(t) = 0

So b = 0.6

and A(max) = 2.2

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A(t) = 2.2\sin \frac{(t - 2)}{k} + 0.6

and t = 5 max value of volume is represent

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\sin \frac{t - \alpha }{k} = 1

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\frac{6}{\pi } = k

so the equation becomes

A(t) = 2.2\sin \frac{(t - 2)\pi }{6} + 0.6

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