A Baseball Player Is Asked to Swing at Pitches in Sets

question 21

Multiple Choice

A baseball player is asked to swing at pitches in sets of four. The player swings at 100 sets of 4 pitches. Theprobability distribution for making a particular number of hits is given below. Determine the mean for thisdiscrete probability distribution. $$\begin{array} { | c | c | c | c | c | c | } \hline x & 0 & 1 & 2 & 3 & 4 \\\hline P ( x ) & 0.02 & 0.07 & 0.22 & 0.27 & 0.42 \\\hline\end{array}$$

• A) 3
• B) 4
• C) 2
• D) 3.5

---

Definitions:

Third-Party Payer

A health plan that agrees to carry the risk of paying for patient services.

Three-Digit Categories

A system of grouping or classification that uses three numbers for identification and organization purposes.

ICD-9

International Classification of Diseases, Ninth Revision, a medical classification list by the World Health Organization for diseases and related health problems, now superseded by ICD-10.

Inpatient Claims

Insurance claims related to medical treatment and services provided to patients who are formally admitted to a healthcare facility.