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slavikrds [6]
3 years ago
6

How do you solve this?

Mathematics
1 answer:
expeople1 [14]3 years ago
7 0
Can you posted a picture
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Birth weights in the United States are normally distributed with a mean of 3420 g and a standard deviation of 495 g. The Newport
s344n2d4d5 [400]

Answer:

P(2450

And we can find this probability with this difference:

P(-1.96

If we use the normal standard table or excel we got:

P(-1.96

And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %

Step-by-step explanation:

Let X the random variable that represent the birth weights of a population, and for this case we know the distribution for X is given by:

X \sim N(3420,495)  

Where \mu=3420 and \sigma=495

We are interested on this probability

P(2450

And we can use the z score formula given byÑ

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(2450

And we can find this probability with this difference:

P(-1.96

If we use the normal standard table or excel we got:

P(-1.96

And that represent 95% of the data. so then the percentage below 2450 is 2.5% and above 4390 is 2.5 %

6 0
3 years ago
A little help?!? Pleaseee
Ksju [112]

Answer:

I think no. Because degree is the sum all variables in first equation degree. Is14 but second equation degree not 14.

4 0
3 years ago
Betty has $33 to buy plants for her greenhouse. Each plant costs $8. How
meriva

Answer:

4 plants

Step-by-step explanation:

If betty has $33 dollars and each plant is $8, than 33/8 ≈ 4

(8 * 4 is 32)

She will have one dollar left but she can't buy another plant since that's not enough.

3 0
3 years ago
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I say it’s D but i need reassurance
Brilliant_brown [7]

Answer:

Yes it's D or it's B

Step-by-step explanation:

3 0
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Which group of skeletal muscles are the largest and strongest in a body?
DENIUS [597]

Answer:

its D i just took the test :)

Step-by-step explanation:

3 0
2 years ago
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