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liq [111]
3 years ago
6

A company advertises two car tire models. The number of thousands of miles that the standard model tires last has a mean \mu_S =

60μ S ​ =60 and standard deviation \sigma_S = 5σ S ​ =5. The number of miles that the extended life tires last has a mean \mu_E = 70μ E ​ =70 and standard deviation \sigma_E = 7σ E ​ =7. If mileages for both tires follow a normal distribution, what is the probability that a randomly selected standard model tire will get more mileage than a randomly selected extended life tire?
Mathematics
1 answer:
Andrew [12]3 years ago
5 0

Answer:

0.123

Step-by-step explanation:

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22.5 deg

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3 0
2 years ago
Helppp me i neeed help
dexar [7]

Total no. of buttons = 300 + 700 + 1000

+ 500 = 2500

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Amount of pink buttons she can expect her friends to pick = 50(3/25) = 6

She can expect to make 6 pink barrettes.

6 0
3 years ago
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Let f(r) = 6,<br> find f-¹(r)
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8 0
1 year ago
8. Bob bought a pair of tennis shoes on sale
mr_godi [17]

Answer:

20%

Step-by-step explanation:

So, I would set this up as a proportion-

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90        100

Cross multiply-

100 x 72 = 7200

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Subtract-

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So, it is a 20% decrease

4 0
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