Answer:
It's D. 53.1°
Step-by-step explanation:
Answer:
9/5
Step-by-step explanation:
If we want to know the amount of times the fraction 5/3 can go into 3, you would need to set up the equation 5/3x = 3.
(3/5)*(5/3x) = (3/5)*(3)
x = 9/5
Answer:
a.1.90 years
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
In this question:
So
So the correct answer is:
a.1.90 years