Chapter 17, Problem 17.10E

Interpretation Introduction

Interpretation:

The average score on a quiz using two different methods are same is to be shown.

Concept introduction:

The average value of variables can be determined by using the probabilities of the variables. The formula used to calculate average using probability is given below.

$\overline{u}=\frac{{\displaystyle \sum _{j=1}^{\begin{array}{l}\text{Possible}\\ \text{values}\end{array}}{u}_j.P_j}}{{\displaystyle \sum _j{P}_j}}$