Question

Assume you are a realtor in Karachi, Pakistan. You have recently obtained a listing of the selling prices of the homes that have sold in that area in the last 6 months. You wish to organize those data so you will be able to provide potential buyers with useful information. Use the following data to create a histogram, frequency polygon, and cumulative frequency polygon (create frequency distribution table for 5 classes).
14,200,000 12,700,000 9,960,000 16,200,000 8,900,000 9,300,000 9,950,000
7,380,000 13,500,000 11,950,000 6,790,000 15,630,000 10,450,000 10,865,000
12,300,000 9,100,000 20,500,000 11,000,000 15,630,000 10,400,000 13,390,000
17,900,000 11,200,000 14,700,000 32,155,000 8,790,000 8,840,000 18,000,000

Answer 1

Solution:

First arranging these numbers in ascending order:

6790000, 7380000, 8790000, 8840000, 8900000, 9100000, 9300000, 9950000, 9960000, 10400000, 10450000, 10865000, 11000000, 11200000, 11950000, 12300000, 12700000, 13390000, 13500000, 14200000, 14700000, 15630000, 15630000, 16200000, 17900000, 18000000, 20500000, 32155000.

Here is the frequency distribution table for 5 classes:

Histogram:

Frequency polygon:

More than type ogive (Cum. freq. polygon):