A population has u=100 σ=20. If you select a single score from this population, on the average, how close would it be to the population mean? Explain your answer

Question

A population has u=100 σ=20.  If you select a single score from this population, on the average, how close would it be to the population mean? Explain your answer

PsyDAG · Answer

If you are talking about 50% of the time, it is ± .675 SD.

Anonymous · Answer

One week Laura earned a total of $350. Of that amount $245 were tips. If she worked a 30-hour week, what was the hourly rate she received?

PsyDAG · Answer

First, if you have a question, it is much better to put it in as a separate post in <Post a New Question> rather than attaching it to a previous question, where it is more likely to be overlooked.

(350-245)/30 = ?