The Sales Records of a Real Estate Company for the Month

Essay

The sales records 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. $$\begin{array} { l l l l l } 105 & 55 & 45 & 85 & 75 \\30 & 60 & 75 & 79 & 95\end{array}$$ ​
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.What percentage of the houses are sold at a price below $80,000?