Statistics: Summarizing Measured Data

See Jain, Chapter 12

What Is Statistics?

Example:

Question: What is the mean time required to complete HW1 in CS5014 this semester?

Answer: Pick 10 students (the sample). Record their completion times. Compute the sample mean, which is an estimate of the mean for the entire population (all CS5014 students).

A Statistic

A statistic is a number that summarizes data. Jain asks [p. 177] ...

What should I know?

Can you explain ...


CS 5014, C. J. Ribbens, 09/17/2001