Solve the system of equations x^2 + y^2 = 1 and y=2x - 2/5
1 answer:
You might be interested in
1) Write 3% as 3/100
2) Since, finding the fraction of a number is same as multiplying the fraction with the number, we have:
of 2500 =
× 2500
Therefore, the answer is 75
If you are using a calculator, simply enter 3÷100×2500 which will give you 75 as the answer.
Commission = $75
Answer:
For the first question the sample size is n= 3850
And replacing we got:
We are confident at 95% that the true proportion of all people who like the movie is between 0.484 and 0.516.
Step-by-step explanation:
We have the following info given:
represent the estimated proportion of all people who like the movie
represent the sample size selected
For the first question the sample size is n= 3850
For the second part they gives to us the margin of error:
We know that the confidence interval for a population proportion of interest is given by:
And the margin of error is given by:
So then the confidence interval can be found with this formula:
And replacing we got:
We are confident at 95% that the true proportion of all people who like the movie is between 0.484 and 0.516.