Answer:
I think letter C.x*-0.50 I'm not sure In my answer
Answer:2
Step-by-step explanation:
You want to find
P(1000 < X < 3000)
where X is normally distributed with mean 1751 and standard deviation 421. Transform X to Z, so that it follows the standard normal distribution with mean 0 and standard deviation 1 using the relation
X = 1751 + 421Z ==> Z = (X - 1751)/421
Then
P(1000 < X < 3000) = P((1000 - 1751)/421 < (X - 1751)/421 < (3000 - 1751)/421)
… ≈ P(-1.783 < Z < 2.967)
… ≈ P(Z < 2.967) - P(Z < -1.783)
… ≈ 0.9985 - 0.0373
… ≈ 0.9612
so that approximately 96.1% of the students fall in this income range.
For this case the generic equation of the line is given by:
Where,
m: slope of the line
b: intersection with the y axis
For this case we have:
Therefore, substituting values in the generic equation we have:
Answer:
The equation of the line is:
option 1
The solution is A) (11, 1).
