a) Calculate the approximate average income of the respondents. The approximate average income of the respondents is $ thousand. (Round to one decimal place as needed.)

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Author:Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson
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A survey that collected demographic data from
respondents asked them to categorize their
annual incomes (in thousands of dollars) into the
groups in the table to the right. The number of
respondents for each income group is also shown
in the table.
Complete parts a) and b).
Income
$20 to under $30
$30 to under $40
$40 to under $50
$50 to under $60
$60 to under $70
a) Calculate the approximate average income of the respondents.
The approximate average income of the respondents is $ thousand.
(Round to one decimal place as needed.)
Number of
Respondents
69
117
122
28
36
Transcribed Image Text:A survey that collected demographic data from respondents asked them to categorize their annual incomes (in thousands of dollars) into the groups in the table to the right. The number of respondents for each income group is also shown in the table. Complete parts a) and b). Income $20 to under $30 $30 to under $40 $40 to under $50 $50 to under $60 $60 to under $70 a) Calculate the approximate average income of the respondents. The approximate average income of the respondents is $ thousand. (Round to one decimal place as needed.) Number of Respondents 69 117 122 28 36
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