The following chart shows the selling price, in thousands of dollars, of houses sold last month in Corner Brook, Newfoundland: 

a. How many homes were studied? 

b. What is the class interval? 

c. One hundred homes sold for less than what amount? $ approximately. 

d. About 25% of the homes sold for less than what amount? $ approximately. 

e. Estimate the number of homes in the $150000 up to $200000 class.

 f. About how many homes sold for less than $225000?n 

200 100 150 75 100 50 50 25 0 50 100 150 200 250 300 350 Selling price ($ thousands) Frequency Percentage