A total of 1000 adults were surveyed whether they thought getting a mortgage was harder than it was a year ago. Their responses are summarized in the relative frequency bar graph in Fig. 17.

a. Find the sum of the relative frequencies of all the categories. Why does your result make sense?
b. Construct a frequency table of the data.
c. From inspecting the bar graph, a student concludes that 18% of all American adults think that it€™s easier to get a mortgage than it was a year ago. What would you tell the student?
d. Individuals were contacted by landlines and cell phones. What type(s) of bias in sampling likely occurred? Explain.

Transcribed Image Text:

Is it harder to get a mortgage today than it was a year ago? s 0.50 0.42 0.40 0.30 0.22 0.18 0.18 0.10 - Harder Easier The same Not sure Response