Jim Drove 252 Miles $21.6$ Miles Per Hour Slower Than Jim Did and Required an at a Speed

question 44

Multiple Choice

Jim drove 252 miles. Jim's brother made the same trip at a speed $21.6$ miles per hour slower than Jim did and required an extra $1 \frac { 1 } { 2 }$ hours. Find Jim's rate and time.

• A) \(\quad 72 \mathrm { mph } , 2.5 \mathrm { hr }\)
• B) \(\quad 66 \mathrm { mph } , 3.5 \mathrm { hr }\)
• C) \(\quad 72 \mathrm { mph } , 3.5 \mathrm { hr }\)
• D) \(\quad 66 \mathrm { mph } , 2.5 \mathrm { hr }\)
• E) not possible

Identify confounding factors and their impact on epidemiological studies.

Define and identify effect measure modifiers in the relationship between exposure and disease.

Calculate and interpret odds ratios in case-control studies.

Understand the different measures of association used in epidemiological studies.

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