Nineteen immigrants to the U. S were asked how many years, to the nearest year, they have lived in the U. S. The data are as follows: 2; 5; 7; 2; 2; 10; 20; 15; 0; 7; 0; 20; 5; 12; 15; 12; 4; 5; 10 . a) Construct a cumulative frequency table for the data.

b) Explain what is wrong with this statement: “47 percent of the people surveyed have lived in the U. S. for 5 years.” Fix the statement to make it correct.

c) What fraction of the people surveyed have lived in the U. S. five or seven years?

d) What fraction of the people surveyed have lived in the U. S. at most 12 years?

e) What fraction of the people surveyed have lived in the U. S. fewer than 12 years?

f) What fraction of the people surveyed have lived in the U. S. from five to 20 years, inclusive?

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