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tekilochka [14]
3 years ago
15

What is the volume in terms of pi?

Mathematics
1 answer:
Contact [7]3 years ago
7 0
Just do the normal formula but don’t multiply it by pi and then add the pi symbol after.
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What percentage of babies born in the United States are classified as having a low birthweight (<2500g)? explain how you got
lawyer [7]

Answer:

2.28% of babies born in the United States having a low birth weight.

Step-by-step explanation:

<u>The complete question is</u>: In the United States, birth weights of newborn babies are approximately normally distributed with a mean of μ = 3,500 g and a standard deviation of σ = 500 g. What percent of babies born in the United States are classified as having a low birth weight (< 2,500 g)? Explain how you got your answer.

We are given that in the United States, birth weights of newborn babies are approximately normally distributed with a mean of μ = 3,500 g and a standard deviation of σ = 500 g.

Let X = <u><em>birth weights of newborn babies</em></u>

The z-score probability distribution for the normal distribution is given by;

                          Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = population mean = 3,500 g

            \sigma = standard deviation = 500 g

So, X ~ N(\mu=3500, \sigma^{2} = 500)

Now, the percent of babies born in the United States having a low birth weight is given by = P(X < 2500 mg)

         

   P(X < 2500 mg) = P( \frac{X-\mu}{\sigma} < \frac{2500-3500}{500} ) = P(Z < -2) = 1 - P(Z \leq 2)

                                                                 = 1 - 0.97725 = 0.02275 or 2.28%

The above probability is calculated by looking at the value of x = 2 in the z table which has an area of 0.97725.

4 0
3 years ago
Even numbers between 27 and 39
lianna [129]
Even numbers are numbers that can be divisible by 2, so in this case
28, 30, 32, 34, 36, 38
^ are even numbers because they can be divided by 2
6 0
3 years ago
On a number line, find the midpoint between -18 and 4.
sineoko [7]

The midpoint between these two would be -7, as you would add these two numbers, and then divide by two.

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In a transformation each point in the object is mapped to another point in the image. The following are the four types of transf
harina [27]
The answer to your question is true
6 0
3 years ago
A model train company puts
kirill115 [55]

Answer:

7

Step-by-step explanation:

Just divide 35 by 5=7

8 0
3 years ago
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