The Sales Record of a Real Estate Company for the Month

Essay

The sales record of a real estate company for the month of May shows the following house prices rounded to the nearest $1,000). Values are in thousands of dollars.
$$\begin{array} { l l l l l } 105 & 55 & 45 & 85 & 75 \\30 & 60 & 7 5&79 & 95\end{array}$$
a. Develop a frequency distribution and a percent frequency distribution for the house prices. Use 5 classes and have your first class be 20 - 39.)
b. Develop a cumulative frequency and a cumulative percent frequency distribution for the above data.
c. 70%
c. What percentage of the houses sold at a price below $80,000?