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sweet [91]
2 years ago
13

PLZ help asap i need to help finish this

Mathematics
1 answer:
Levart [38]2 years ago
5 0

Answer:

ok i will

Step-by-step explanation:

pls give me a little bit of time ok

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Which statement describes the ratio of weight to mass and the value of x in the table?
tiny-mole [99]
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Step-by-step explanation:

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The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of
valina [46]

Answer:

(221.39, 300.61) and (255.2223, 266.7777)

Step-by-step explanation:

Given that X, the  lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days and a standard deviation of 17 days

Middle 98% would lie on either side of the mean with probability ±2.33 in the std normal distribution on either side of 0

Corresponding we have x scores as

Between 261-2.33*17 and 261+2.33*17

i.e. in the interval = (221.39, 300.61)

If sample size = 47, then std error of sample would be

\frac{17}{\sqrt{47} }

So 98% of pregnancies would lie between

261-2.33*\frac{17}{\sqrt{47} } and 262+2.33*\frac{17}{\sqrt{47} }

= (255.2223, 266.7777)

8 0
2 years ago
2x + y = 4y solve for y <br> help plzzzzzz!!!!
kirill [66]

Answer:

y=2x/3

Step-by-step explanation:

5 0
3 years ago
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