The crash risk of a teenage driver does not decrease with more passengers. In fact it increases due to the increased likelihood that the driver gets distracted.
There are many more buses than passenger airplanes, so even though buses can be safer per passenger mile, there are more bus crashes. You WAY more likely to be in a bus crash, then in a plane crash. thousands, and thousands of car/automobile's crash every year. And only about a few hundred plane's crash a year.
NO, males are more likely to be involved in a vehicle crash (as a driver, rather than passenger), than women. Women do not have excesses of testosterone. Hence the popularity of female-only insurance companys, such as "Shelia's Wheels".
50/50 really if you think about it depends on the driver.
Today as the roads are more crowded it is in a car that is more likely.
Per vehicle mile, motorcyclists are about 37 times more likely as passenger car occupants to die in a traffic crash
... without any auto insurance and/or a suspended license. There may not be any way to gain compensation if it was the other driver's fault.
If you are under 18 years of age, your risk of a fatal crash is about 2 1/2 times that of the "average" driver, and your risk of an injury crash is 3 times higher than that of the average driver.
who more likelly to die bike or car crash
VERY MANY more times than a sober driver. Being intoxicated greatly weakens your ability to focus on driving.
Laws vary from state to state. However, I don't know of anywhere that it is illegal, but it is very irresponsible. If a passenger is in the car when the driver is pulled over for driving without a licence, the passenger may be ticketed or jailed, depending on the state, and the passenger would more than likely get a ride home and nothing more. If you know that the driver of a vehicle is not licensed by the state, you should not ride with that driver. If you are in a car accident, the driver cannot be insured if they are unlicensed, and you could be liable for your hospitalization, ambulance and physician's fees.