Answer:
This looks hard.
Step-by-step explanation:
I know because it is very hard.
Answer:
-45
Step-by-step explanation:
2/3x - 11 = x + 4
- I created an inequality representing the above statement first. This makes things look less complicated than what the question is asking.
2/3x = x + 15
- solve for x. I started by adding 11 to both sides.
-1/3x = 15
- multiply both sides by -3
x = -45
Answer:
And if we solve for a we got
The highest total cholesterol level a woman in this 20–34 age group can have and still be in the bottom 1% is 91.771 mg per deciliter
Step-by-step explanation:
Let X the random variable that represent the cholesterol level of a population of women between 20-34, and for this case we know the distribution for X is given by:
Where
and
We want to find the highest value for the bottom 1% in the distribution, so we need to find a value a who satisfy the following conditions:
(a)
(b)
We can find a z value that satisfy the condition with 0.01 of the area on the left and 0.99 of the area on the right it's z=-2.33. And we can verify that on this case P(Z<-2.33)=0.01 and P(z>-2.33)=0.099
If we use condition (b) from previous we have this:
But we know which value of z satisfy the previous equation so then we can do this:
And if we solve for a we got
The highest total cholesterol level a woman in this 20–34 age group can have and still be in the bottom 1% is 91.771 mg per deciliter