Abag contians 5 blue and 8 red and 7 green marbels. a marble is selacted at random. find the propobility the marbelis not red.

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 diagram shows corresponding lengths in two similar figures. find the area of the smaller figure. a. 14.4 yd2 b. 24 yd2 c. 26.4 yd2 d. 28

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error