A consumer survey was conducted to examine patterns in ownership of laptop computers, cellular telephones, and DVD players. The following data were obtained: 313 people had laptop computers, 232 had cell phones, 269 had DVD players, 69 had all three, 64 had none, 98 had cell phones and DVD players, 57 had cell phones but no computers or DVD players, and 104 had computers and DVD players but no cell phones.
a. What percent of the people surveyed owned a cell phone?
b. What percent of the people surveyed owned only a cell phone?
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