138sp10exam3

# 138sp10exam3 - Math 13800 Circle your answer for questions...

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Math 13800 Exam 3 Spring 2010 1 Circle your answer for questions 1-3. Use the information in this graph to answer questions 1 and 2. (7 pts)1. What is the median of this set of data? .29 .30 .5 .31 A B C D E (7 pts)2. What is the IQR for this set of data? .17 .18 .36 .21 .15 A B C D E (7 pts)3. An exam was given to fifth-grade students, and the scores were normally distributed with mean 62 and standard deviation 12. What percent of students had scores between 50 and 98? . 83.85% .68% .95% . 81.50% . None of the above A B C D E Ages of 58 people attending a water-quality lecture. 16 20 19 37 36 35 18 17 21 25 24 23 22 26 30 29 28 27 31 34 33 32 39 38

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Math 13800 Exam 3 Spring 2010 2 (8 pts)4. What type of data, categorical or measurement, is the response to each situation? a) number of credit hours taken this semester b) favorite music style c) number for your birth month Give an example of measurement data for the context of a shopping trip. (8 pts)5. The pie graph shown here shows how letter grades were distributed on an exam.
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138sp10exam3 - Math 13800 Circle your answer for questions...

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