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2 years ago

Sammie delivered 33 of the 50 newspapers on his route. What percentage does he have left?

1 answer:

5 0

34%
to find percent you need to make 2 fractions, the one you already have is 33/50 the other is x/100
then cross multiply and divide, the percent left is 33 because after you subtract the 66 from 100 you are left with 34%

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Suppose that a sample of size 100 is to be drawn from a population with standard deviation L0. a. What is the probability that t

NARA [144]

Answer:

The probability that the sample mean will lie within 2 values of μ is 0.9544.

Step-by-step explanation:

Here

the sample size is given as 100
the standard deviation is 10

The probability that the sample mean lies with 2 of the value of μ is given as

$P(| \bar{X}-\mu|$

Here converting the values in z form gives

$P(-2$

Substituting values

$P(-2$

From z table

$P(z\leq 2)=0.9772\\P(z\leq -2)=0.0228\\P(-2\leq z\leq 2)=P(z\leq 2)-P(z\leq -2)\\P(-2\leq z\leq 2)=0.9772-0.0228\\P(-2\leq z\leq 2)=0.9544\\$

So the probability that the sample mean will lie within 2 values of μ is 0.9544.

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3 years ago

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cestrela7 [59]

Answer:

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Step-by-step explanation:

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3 years ago

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Akimi4 [234]

The volume of water that goes into the hose is the same as the volume of water that comes out the nozzle. This means the velocity is inversely proportional to the area. The area is proportional to the square of the diameter.

Taken together, these facts mean that if the diameter is divided by a factor of 3, the velocity is multiplied by a factor of 3^2 = 9.

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3 years ago

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monitta

Answer:

Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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3 years ago