Question

Residential Energy Consumption. Refer to the energy consumption data given in Exercise 2.84.

a. Construct a table similar to Table $2.14$for the data, based on the classes specified in Exercise 2.84. Interpret your results.

b. Construct an ogive for the data.

Short answer

(a) The table for the data is shown in figure

(b) Construct an ogive for the data graph is shown in.

Step-by-step solution

Part (a)  Step 1: Given Information 

Construct a table similar to Table $2.14$ for the data, based on the classes.

Part (a) Step 2: Explanation 

Construct a table similar to Table for the data,

From the result of previous exercise,

Part (b) Step 3: Given Information 

Refer to the energy consumption data. Construct an ogive for the data.

Part (b) Step 4: Explanation 

The cumulative relative frequency is the cumulative frequency divided by total frequency of . Then,

Part (b) Step 5: Explanation 

Add the above points to the graphs and join them by a straight line as shown below,