One factor that goes into your premium is your age. Since they are less experienced, younger drivers are likely to have higher premiums. Elderly drivers are also typically more expensive.
Your type of coverage will also affect your premium. If you have cheaper coverage and less protection, your monthly costs will be lower. This will affect your payouts if you ever have to make a claim, however.
Finally, a slew of personal information will be factored in. This includes gender, credit score, medical history, and other things.