# Lecture Notes for STAT 2004 - Introductory Statistics at Virginia Tech (VT)

## Notes Information

 Material Type: Review Sheet 7 Professor: Staff Class: STAT 2004 - Introductory Statistics Subject: Statistics University: Virginia Polytechnic Institute And State University Term: Fall 2006 Keywords: Following ValuesThe IndependentIndependent EventsNo CorrelationStandard DeviationInterpretationExperimentsData AnalysisInterquartile RangeRandom Sample

## Sample Document Text

1. Given the following information, what is the standard deviation?  x = 22  x 2 = 132 n = 5 Given the following values, what is the 33rd percentile? X: 1 3 5 2 8 2. 3. If Q1 = 25, median = 84.0, and P75 = 100. What is the Interquartile Range and how much of the data does it cover (or span) respectively? 4. Given the following information: x = 22 (x2) = 132 y = 17 Find the correlation coefficient (y2)= 89 (xy) = 61 n=5 5. The average age in college is 20 years old with a standard deviation of 1.2 years. About how many people would there be between 18.8 and 21.2 years old? 6. Given the information from #4 What is a and b from the regression equation respectively? 7. The marks on a statistics test are normally distributed with a mean of 62 and a variance of 225. If the instructor wishes to assign A's or higher to the top 20% of the students in the class, what mark is required to get an A? 8. X is normally distributed with a mean of 100 and standard deviation of 20. What is the prob...

## Related Documents

Random Sample Notes
School District Notes
School District Notes
Data Analysis Notes
Exclusive Or Exam
Either...or Exam
Central Limit Theorem Exam
Central Limit Theorem Exam
Central Limit Theorem Exam
Class Intervals Notes
Probabilities Exam
Percent Error Exam
Particularly Notes
Probability Distribution Exam
Association Exam
Exam Monitor Notes