Casio — Fx50fh Ii Manual

"There," Elias pointed. "That is your population standard deviation. If you press RCL and then ) , you get the sample standard deviation ($x\sigma_n-1$). The manual lists the shortcuts on the keypad, but the story is simple: Input data with M+ , recall answers with RCL ."

Elias chuckled, picking up the device. It was light, solar-powered, and built like a tank. "Ah, the fx-50FH II. The successor to the legendary FH. A favorite here in Hong Kong for the DSE exams. It looks simple, but there is a beast hiding under this hood." casio fx50fh ii manual