At a large department store, the average number of years of employment for a cashier is 5.7 with a standard deviation of 1.8 years. if the number of years of employment at this department store is normally distributed, what is the probability that a cashier selected at random has worked at the store for over 10 years?

  0.0019

Step-by-step explanation:

Let x be the random variable that represents the number of years of employment at this department store.

Given : The number of years of employment at this department store is normally distributed,

Population mean :

Standard deviation :

Z-score :

Now, the z-value corresponding to 10 :  

P-value =

Hence, the probability that a cashier selected at random has worked at the store for over 10 years = 0.0019

28

step-by-step explanation:

8+8+6+6

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.