The average age of a breed of dog is 19.5 years. If the distribution of their ages is normal and 20% of dogs are older than 22.6 years, find the standard deviation.

Keep your choice of a major there is probably no single correct choice. a ) to yourself. b) in perspective. c) based solely on the expectations of others. d) all of the answer choices are correct.

Three important things a musician must do for a superior performance. essay

Balanced rock sits on a thin spike of rock in a canyon what forces keep the rock balanced on its tiny pedestal