Answer:
C) 
Step-by-step explanation:
Group the similar terms together:
Add/subtract the "c" variables:
Add/subtract the "d" variables:
If your round it to the nearest whole number it will be 3
I believe the answer is -10
Liter is used to measure volume
Answer:
We are 90% sure that the true proportion of Americans who approve the ppresident's policies is in the interval from 42% to 46%.
Step-by-step explanation:
A confidence interval of a proportion p% at the x% level with m% margin of error means that:
We are x% sure that the true mean of the population is in the interval from (p-x)% to (p+x)%.
In this problem, we have that
90% confidence level
44% with a margin of error of 2%
So:
We are 90% sure that the true proportion of Americans who approve the ppresident's policies is in the interval from 42% to 46%.
