Number of age, visits, months and time is an example of

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

For which pair of functions is (gof)(a)=|a|-2?

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.