The Expected Number of Heads in 500 Tosses of an Unbiased

question 15

Multiple Choice

The expected number of heads in 500 tosses of an unbiased coin is:

• A) 150
• B) 200
• C) 250
• D) 300
• E) 500

---

Definitions:

Least Squares Regression Line

A straight line that minimizes the sum of the squared differences between the observed values and the values predicted by the line.

Estimated Value

An approximation of a quantity based on available information or statistical methods.

Observations

Individual data points or items recorded during an experiment or survey.

Least Squares Regression Line

A statistical method used to find a straight line that best fits a set of data points by minimizing the sum of the squares of the vertical distances of the points from the line.