Answer is 5 because 7-2 equals 5
Xy-x=2y+1
y = 2y+1
-2y -2y
-y = 1
/-1 /-1
Y= -1
X=1/3y+5/3
X = 1/3(-1) + 5/3
X = -1/3 + 5/3
x = 4/3
Also known as 1 1/3
Ok so do you know the steps for substitution
Answer:
yes its propotional
Step-by-step explanation:
Answer:
The 95% confidence interval for the true proportion of Gastown residents living below the poverty line is (0.133, 0.2766).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence interval , we have the following confidence interval of proportions.
In which
Z is the zscore that has a pvalue of .
For this problem, we have that:
He takes a simple random sample of 122 people living in Gastown and finds that 25 have an annual income that is below the poverty line. This means that and
We have , z is the value of Z that has a pvalue of = 0.975, so .
The lower limit of this interval is:
The upper limit of this interval is:
The 95% confidence interval for the true proportion of Gastown residents living below the poverty line is (0.133, 0.2766).