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Monica [59]
3 years ago
6

What is the slope of the line that passes through the points (-3, -3) and (-9, 5) Write your answer in simplest form.

Mathematics
1 answer:
BabaBlast [244]3 years ago
3 0

Step-by-step explanation:

The slope of the line is -4/3.

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Assume that​ women's heights are normally distributed with a mean given by mu equals 62.5 in​,and a standard deviation given by
Misha Larkins [42]

Answer:

(a) 0.5899

(b) 0.9166

Step-by-step explanation:

Let X be the random variable that represents the height of a woman. Then, X is normally distributed with  

\mu = 62.5 in

\sigma = 2.2 in

the normal probability density function is given by  

f(x) = \frac{1}{\sqrt{2\pi}2.2}\exp{-\frac{(x-62.5)^{2}}{2(2.2)^{2}}}, then

(a) P(X < 63) = \int\limits_{-\infty}^{63}f(x) dx = 0.5899

   (in the R statistical programming language) pnorm(63, mean = 62.5, sd = 2.2)

(b) We are seeking P(\bar{X} < 63) where n = 37. \bar{X} is normally distributed with mean 62.5 in and standard deviation 2.2/\sqrt{37}. So, the probability density function is given by

g(x) = \frac{1}{\sqrt{2\pi}\frac{2.2}{\sqrt{37}}}\exp{-\frac{(x-62.5)^{2}}{2(2.2/\sqrt{37})^{2}}}, and

P(\bar{X} < 63) = \int\limits_{-\infty}^{63}g(x)dx = 0.9166

(in the R statistical programming language) pnorm(63, mean = 62.5, sd = 2.2/sqrt(37))

You can use a table from a book to find the probabilities or a programming language like the R statistical programming language.

4 0
3 years ago
17/10 - 2/5 = *<br> Helpppp
uysha [10]
17/10-(2/5x2/2)
17/10-4/10
=13/10
8 0
3 years ago
What % of 300 is 30​
algol13

Answer:10%

Step-by-step explanation:

5 0
3 years ago
What is 7 over 10 as a decimal
Inessa05 [86]
.70 yup that's it that's the answer
4 0
3 years ago
The height of a desk is 11 inches shorter than the height of a chair. The height of the chair is 41 inches.
defon

Answer:

equation: y=41-11

answer: the desk is 30 inches.

Step-by-step explanation:

So if the desk is 11 inches SHORTER than the chair, and the height of the chair is 41 inches, all you need to do is subtract 11 from 41, which will give you a total of 30 inches.

Hope this helps!

8 0
2 years ago
Read 2 more answers
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