There is no single method which is most effective in all situations.
Yes
Nearly 100%!
a small cm ruler An effective method to measure a fingernail would be to use a sliding caliper
When you want a large number, one very effective method can be to get a small number and double it. If it's still not as large as you want, you can double it again.
It has to do with getting the required power in the most cost effective method.It has to do with getting the required power in the most cost effective method.
No method of birth control is 100% effective.
i think the most effective method is a condom and the pill No it is Abstinence
Typically medication is the most effective method. Your doctor can help determine what method will work for you.
No- the only 100% effective method, unfortunately, is abstinence. Combining birth control pills/condoms/spermicide would *greatly* reduce the chance of getting pregnant, but there's still a small chance you could.
No!
There are many introductions you could write about the study type method. You could say that the study type method is effective and why it is effective.
The scientific method is most effective in proving or finding an answer to your initial Hypothesis. Many times the scientific method will lead you to new questions.
Effective business practices
No
The calendar method is the least dependable method of contraception (aside from keeping your fingers crossed).
the method can't be used in that case... not that effective