Answer:
Cómo se vería si estuviera graficado:
2x−y=−2
3x−3y=15
Cómo se vería si lo resolviera graficando:
(−7,−12)
Answer:
c) .22
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:

Then



Answer: 2
Step-by-step explanation:
Answer:
Yes, girls are more likely to call more.
Step-by-step explanation:
<span>nth term = 7n - 3
n = 1,2,3,4....</span>