The salaries of Pet Detectives are normally distributed with a mean of $32,000 and a standard deviation of $3000. If 100 Pet Detectives are randomly selected, find the probability that their average salary is greater than $32,500. Select the single best answer choice

And for this case we can use the z score formula given by:

And replacing the info given we got:

And for this case we can find the probability with the normal standard table using the complement rule and we got:

Step-by-step explanation:

Let X the random variable that represent the salaries of Pet Detectives of a population, and for this case we know the distribution for X is given by:

Where and

We select a sample size of n =100 Pet Detectives and we want to find the following probability:

And for this case we can use the z score formula given by:

And replacing the info given we got:

And for this case we can find the probability with the normal standard table using the complement rule and we got:

the circle graph is not a function.

step-by-step explanation:

the graph of the circle is not a function.

because for a graph to be a function, each value of x must give one value of y

in the circle, the values of x for -2< x< 2 each give 2 values of y.

hence this is not a function.

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.