6)
4. 12. 16. 48. 52. 156. 160
4. 8. 1. 2.-5.-10.-17
8
22, 28. 21. 27. 20. 26. 19
1, 2, 4, 8, -14, -28, -34.

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?

Sum is 17 and their difference is 3

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year