Table 42 Shows Alex's Demand Schedule for Chocolate Bars A) Calculate the Price Elasticity of Demand Between $1 and

Table 4.2 shows Alex's demand schedule for chocolate bars. $$\begin{array}{l}\text { Table } 4.2\\\begin{array} { l l } \hline \mathrm { P } & \mathrm { Q_D } \\\hline 1 & 9 \\3 & 7 \\5 & 5 \\7 & 3 \\9 & 1 \\\hline\end{array}\end{array}$$ a) Calculate the price elasticity of demand between $1 and $3
b) Calculate the price elasticity of demand between $3 and $5
c) Calculate the price elasticity of demand between $5 and $7
d) Calculate the price elasticity of demand between $7 and $9