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%.
Answer:
-20% aka 20% decrease
Step-by-step explanation:
Answer:
33k - 15
Step-by-step explanation:
=> 8k-5(-5k+3)
=> 8k+25k-15
=> 33k - 15
360 - because a right angle is 90° and there are 4 right angles in a circle , 90 x 4 = 360