Which radiation is a nuclear origin

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).

Write a polynomial function with the given zeros x= -1,0,2show your work