The answer to this would be 40 degrees.
I THINK that the answer is A
Answer:
268396
Step-by-step explanation:
given that in a recent year 21.2% of all registered doctors were female. hence final answer is that there are total approx 268396 registered doctor's.
Answer:
We are given that Among 180 homes in Hyde Park, 25 were found to have unsafe radon levels. Among 230 homes in La Grange, 50 were found to have unsafe radon levels.
Claim : the two towns have different rates of unsafe radon levels.
Let
and
be the rates of unsafe radon levels of Hyde Park and LaGrange respectively .

Among 180 homes in Hyde Park, 25 were found to have unsafe radon levels
So, 
Among 230 homes in La Grange, 50 were found to have unsafe radon levels.
So, 
We will use Comparing Two Proportions







Formula of test statistic :
Substitute the values
test statistic :
test statistic : −2.053
Refer the z table for p value
p value = 0.0202
α= 0.05
Since p value < α
So, we reject the null hypothesis that the two towns have same rates of unsafe radon levels.
So, Claim is true.