The driver ___ with an accident (fill in the blanks)

If d: driver is drunk, a: driver meets with an accident, translate the statement 'If the Driver is not drunk, then he cannot meet with an accident' into symbols

Fill in the following blanks:

Fill in the blanks with sign.

Fill in the following blanks :

Fill in the blanks. 7^0 = ____

An insurance company insured 2000 scooter drivers,4000 car drivers and 6000 truck drivers.The probabilities of an accident for them are 0.01,0.03 and 0.15 respectively.One of the insured persons meets with an accident. What is the probability that he is a scooter driver or a car driver?

An insurance company insured 2000 scooter drivers,4000 car drivers and 6000 truck drivers.The probability of an accidents are 0.01,0.03 and 0.15 respectively.One of the insured persons meets with an accident.What is the probability that he is a scooter driver?

An insurance company insured 2000 scooter drivers,4000 car drivers and 6000 truck drivers.The probability of an accident involving a scooter,a car and a truck are 0.010.03 and 0.15 respectively.One of the insured persons meets with an accident.What is the probability that he is a scooter driver.