Answer:
Option c.
Step-by-step explanation:
Using the normal curve to approximate a sampling distribution:
For a sample size n and a proportion n, the normal curve can be used if:
and 
Option a:


So option a cannot be used.
Option b:


So option b cannot be used.
Option c:


So option c can be used, and is the answer
Option d:


So option d cannot be used.
The answer is given by option c.
Answer:
2/5 because there is 5 spots and A is the second one on the number line
Answer:
You use trigonometry.
Step-by-step explanation:
You can use soh cah toa. Basically you pic one side and if the interior angle is opposite or next to it, you you soh, or cah, or toa, it's based on where the angle is.
Answer:
the first one
Step-by-step explanation:
the answer is the first one
Halving-reduce by half or think what is fifty% of the number or divide by two
doubling-add the number you got to the same number or multiply by two
Halving Ex.:6/2=3
Doubling ex.: 9+9=18 or 6*2=12