Answer:
Step-by-step explanation:
480?
Alright so
5^4m = 5^12
cancel the bases
4m=12
divide by 4
m=3
Answer:
D. The standard deviation is known and n > 30.
Step-by-step explanation:
- Your sample size is greater than 30.
- Data points should be away from each other.
- Your data should be commonly categorized.
- Your data should be randomly picked from a population. Each item should have an equal chance of being selected.
- The sample sizes should be equal.
Answer:

Step-by-step explanation:

I hope I helped you^_^