Question: a suppose x follows a normal distribution with mean0 you...
a.) Suppose X follows a Normal distribution with mean=0. You measured X and found that the value is x (that is not zero.) You calculated and found z score is exactly x. What is the standard deviation of this Normal distribution? (Hint: Consider x=1 case.)
d.) none of the above
The mean life of a certain car battery can be modeled using a Normal distribution with a mean of 4 years and a standard deviation of 1 year. Determine the following:
a) the probability the battery will die before 5 years
b) the probability the battery will last at least 5 years
Please show all work