Answer: The answer is in the first image.
Explanation: The explanation is in the second image.
Answer:
-56
Step-by-step explanation:
33% of the salary = (33/100) * 2575
= 849.75
So the income tax = 849.75 dollars
Answer:
Around 2397 Americans must be surveyed to get a margin of error of 2%.
Step-by-step explanation:
We are given the following in the question:
Proportion of US residents who thinks marijuana should be made legal = 48%

We have to construct a 95% confidence interval.
Margin of error = 2% = 0.02
Formula for margin of error =


Putting values, we get,

Thus, around 2397 Americans must be surveyed to get a margin of error of 2%.