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The following cumulative frequency polygon shows the selling price ($000) of houses sold in the Billings, Montana, area.
.:.
a. How many homes were studied?
b. What is the class interval?
c. One hundred homes sold for less than what amount?
d. About 75% of the homes sold for less than what amount?
e. Estimate the number of homes in the $150,000 up to $200,000 class.
f. About how many homes sold for less than $225,000? |
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