At a local fair, a roller coaster takes 11.89 seconds to complete one ride. if eight people can ride at the same time, use estimation to determine how many people can ride the roller coaster in one hour

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 ratios are equivalent to 10: 16? check all that apply. 30 to 48 25: 35 8: 32 5 to 15

Two consecutive negative integers have a product of 30. what are the integers?