Winnnie has 7 soccer trophies she wants to display in a array. how many different arrays can she use

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?

Which expression shows the sum of the polynomials with like terms grouped together

Find the domain and range of the following function f(x) = 51x - 21+ 4