Suppose two fair dice are rolled (a red die and a blue die). What is the probability that the red die shows a larger number than the blue die? Please give your answer as a fully reduced fraction (i. e. 3/7, 8/15, etc.) *
0 points

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?

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'