The data in the table show cell phone ownership status by grade level of 300 middle school students. If one of the 300 students is randomly selected, what is the probability that the student owns a cell phone, given that the student is a seventh grader? Grade LevelOwns a Cell PhoneDoes not own a Cell PhoneTotalsSixth3070100Seventh5545100Eighth7822100Totals163137300

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Problem Solving questions are mixed in with Data Sufficiency questions to make up the 37 questions of the GMAT Quantitative section, which must be completed in 75 minutes. The Problems You’ll Work On When working through the problem solving questions test your understanding of: Basic math, including fractions, decimals, ratios and proportions, percents, and exponents. Probability and Statistics, including counting techniques, permutations and combinations, basic probability, arithmetic mean, median, mode, and standard deviation. Algebra, including polynomials, linear equations and... Show more

The data in the table show cell phone ownership status by grade level of 300 middle school students. If one of the 300 students is randomly selected, what is the probability that the student owns a cell phone, given that the student is a seventh grader? <br><table><thead><tr><td><b>Grade Level</b></td><td><b>Owns a Cell Phone</b></td><td><b>Does not own a Cell Phone</b></td><td><b>Totals</b></td></tr></thead><tbody><tr><td>Sixth</td><td>30</td><td>70</td><td>100</td></tr><tr><td>Seventh</td><td>55</td><td>45</td><td>100</td></tr><tr><td>Eighth</td><td>78</td><td>22</td><td>100</td></tr><tr><td><b>Totals</b></td><td>163</td><td>137</td><td>300</td></tr></tbody></table><br>