Thomas's shifts vary in length. He works an 8-hour shift half of the time, a 10-hour shift a third of the time, and a 12-hour shift a sixth of the time. What percent of his workdays does Thomas work more than 8 hours? Explain.

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

How is the interquartile range calculated?