At a coffee shop, the first 100 customers'
orders were as follows.

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?

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

What is the scale factor of two similar pyramids with volumes of 64 cubic feet and 8 cubic feet