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sweet [91]
4 years ago
8

The average age for licensed drivers in a certain county is 42.6 years with a standard deviation of 12.2 years. A researcher obt

ained a sample of 25 drivers who received parking tickets and computed the average age of these drivers. Which test should he use to determine if the average age of the drivers who received parking tickets is different than the average age of the entire county?
Mathematics
1 answer:
Tpy6a [65]4 years ago
4 0
NNNNUUUUUUUTTTTTTTTTTTTTT
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2y = x - 4<br> 4x + 3y = 5
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Answer:

x=2 and y=−1

Step-by-step explanation:

<u>Let's solve your system by substitution.</u>

4x+3y=5;2y=x−4

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3 years ago
Please help me right away.
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\dfrac{D(t)}{R(t)}=\dfrac{400-120t}{450-150t}=\dfrac{10(40-12t)}{10(45-15t)}=\dfrac{40-12t}{45-15t}\to\boxed{a.}

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Find the new price :<br> Food bill : $55<br> Sales Tax : 8%<br> Tip : 18%
pickupchik [31]
55×0.08=4.40
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3 years ago
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astraxan [27]

Answer:

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PLEASE HELP ASAP IM TAKING A TEST AND ITS WORTH A LOT how are conditional probability and independent events related select the
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