Answer:
The graph in the attached figure
Step-by-step explanation:
Let
x ----> the number of open acres
y ----> the number of developed acres
we know that
-----> inequality A
The solution of the inequality A is the shaded area above the solid line
-----> inequality B
The solution of the inequality B is the shaded area below the solid line
so
The graph in the attached figure
Answer:
The sampling distribution of sample proportion is approximately normal, with mean 0.62 and standard deviation 0.0485.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean and standard deviation , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean and standard deviation .
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean and standard deviation
62% of those people get some relief from taking ibuprofen (true proportion).
This means that
Sample of 100
This means that
A. (4 pts.) Determine the sampling distribution of sample proportion. Also, find the mean and standard deviation of the sampling distribution.
By the Central Limit Theorem, it is approximately normal with
Mean
Standard deviation
Answer:
18
Step-by-step explanation:
30 divided by 5 x what is left over from the whole.
Answer:
x=12
y=20
Step-by-step explanation:
<u>the</u><u> two</u><u> triangles</u><u> are</u><u> congruent</u><u> </u>
according to the question
x+18=6x-42
6x-x=18+42
5x=60
x=12
if two triangles are congruent the included Angeles are equal
so
y+22=3y-18
3y-y=22+18
2y=40
y=20