Find the radius whose diameter are 7.8cm and 8.4cm​

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?

Hello can you me find all the products

Extra points! find the missing dimension! need asap