HOME Realty claims that it can sell a detached, residential house faster than an

Question

HOME Realty claims that it can sell a detached, residential house faster than any other realty company. With the aim of examining HOME's claim, you sample 20 customers who sold a detached, residential house through HOME and record the selling times (in days) of the houses. Your data are summarized in the following histogram Frequency 6 5 2 2 0. 10 20 30 40 50 Selling time (in days) Based on the histogram, find the proportion of selling times in the sample that are less than 30 days. Write your answer as a decimal, and do not round your answer Help Clear Undo

Explanation / Answer

Number of customers lying in less than 30 days bracket = 6 + 5 + 4 = 15

Hence,

Proportion of customers having selling time less than 30 = 15/20 = 3/4 = 0.75

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