Answer:
You need to times the first two numbers together and then times the answers with the other number and at the end divide them and this is ur answer, i have a test right now so i cant really do it for you so get a notebook and paper and try to solve it
Step-by-step explanation:
2n-5=21
add 5 to both sides
2n=26
divide both sides by 2
n=13
I hope I helped! :)
Answer: 1
Step-by-step explanation:
5+13/18
18/18
1
Answer: simple random sampling
Step-by-step explanation:
- A simple random sampling is a sampling method in which individuals are chosen randomly from the population. In this each individual has equal chances to get selected.
- If N is the population size , then for any individual , the chances for getting selected is
.
As per given , the company randomly selects 50 customers directly from the database without applying any further steps and asks them about their level of satisfaction with the company.
Thus , the sampling technique used here is simple random sampling.