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Midterm

# Midterm - Math 350 Midterm Chapters 2 4 5 11 Printed Name...

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Math 350 – Midterm – Chapters 2, 4, 5, & 11 Printed Name: Calculators are allowed on this test...neighbors are not ! Round answers (where appropriate) to 4 places after the decimal. Grade of 100 1 Suppose 8 out of 1,000 newborns test positive for HIV in the inner city. Suppose a sample of 500 newborns are screened at the inner-city hospital. Compute the following probabilities. A 6 pts There are exactly 4 HIV positive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B 6 pts There are between six and ten (inclusive) HIV positive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C 6 pts Is 10 an excessive number of HIV cases? Explain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D 6 pts Compute the expected number of HIV positives. μ Dr. Emmert Summer 2011 I of IV Points Earned of 24

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Math 350 – Midterm – Chapters 2, 4, 5, & 11 2 Consider the following baseline serum-cholesterol levels (mg/dL) data. 195 145 205 159 244 166 250 236 192 224 238 197 169 158 151 197 180 222 168 168 167 161 178 137 A 10 pts What is the 5-number summary for this data? Min Q 1 Med Q 3 Max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B 6 pts There are no outliers in this data. What is the minimum level of serum-cholesterol which would be considered a :::: high outlier (round appropriately to an integer)?
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Midterm - Math 350 Midterm Chapters 2 4 5 11 Printed Name...

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