A 2012 survey examined cell phone ownership by US adults. The results of the survey are shown in Table 2.7.

Cell Phone Owned...............Frequency
Android smartphone.................458
iPhone smartphone...................437
Blackberry smartphone ............141
Cell phone not smartphone......924
No cell phone .............................293
Total............................................2253

(a) Make a relative frequency table of the data. Give results to three decimal places.
(b) What percent of the survey respondents do not own a cell phone? What percent own a cell phone but not a smartphone? What percent own a smartphone?