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I am Lyosha [343]

2 years ago

15

Help me fast pleas- help meeeeeeeeeeeeee

1 answer:

kherson [118]2 years ago

7 0

Hidden Treasures Walking Tour:
y= 9 x 6 + 25
= 79

Road-Less-Traveled Tours:
the function is y= 12x
y= 12 x 6 = 72

Bowman Bros:
The line is y -30 over x -1 = 50 - 30 over 3 - 1
y= 10x + 20

y= 10 x 6 + 20 = 80

72 < 79 < 80
So chose Road-Less-Travelled Tours

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3 years ago

Geometry/proportions <br> Solve for x.

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3 years ago

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There are 30 balls numbered 1-30 in a bag. One is randomly selected 12 times. What is the probability of getting a prime number

Sliva [168]

Answer: The probability of getting a prime number exactly five times = 0.1908

Step-by-step explanation:

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The probability of getting a prime number p= $\dfrac{10}{30}=\dfrac13$

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Binomial probability formula:

$P(X=x) = \ ^nC_x p^x(1-p)^{n-x}$

, where x= number of successes

n= number of trials.

x = Number of successes

p= probability of getting one success.

The probability of getting a prime number exactly five times:

$P(X=5)=\ ^{12}C_5(\frac13)^5(1-\frac13)^{7}$

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