In a certain city, revenue from parking meters is collected by two different companies: XYZ Security, Inc., and one of their biggest competitors. The two companies each are responsible for about half of the meters in the city. The data set for this problem contains two sets of amounts (in millions of dollars) collected from parking meters in recent fiscal year. The first column contains amounts collected by XYZ and the second column contains amounts collected by the other company. Find the mean, median, and mode for each of the two samples. (Round the mean and median to two decimal places; add trailing zeros as needed. Do not round the mode.)
The mean for XYZ Security is $ million and the mean for the competitor is $ million.
The median for XYZ Security is $ million and the median for the competitor is $ million.
The mode for XYZ Security is $ million and the mode for the competitor is $ million.
Question 2 compare the results from Problem 1. Choose the correct answer below: Group of answer choicesThe median is lower for the collections performed by the competitor, but the mean is lower for XYZ Security.The mean and median appear to be roughly the same for all collections. The mean is lower for XYZ Security, but the median is lower for the collections performed by the competitor. The mean and the median for the collections performed by the competitor are both lower than the mean and the median for XYZ Security.The mean and the median for XYZ Security are both lower than the mean and the median for the collections performed by the competitor.
Group of answer choices The mean and the median are equal. The mean is greater than the median. It is not possible to compare the mean and median based on the histogram alone. The mean is less than the median.
A statistics class has the following activities and weights for determining a grade in the course:
- Three tests, each 15% of the grade.
- Homework worth 10% of the grade.
- A semester project worth 20% of the grade.
- A final exam worth 25% of the grade.
Suppose a student receives a 92 on test 1, an 85 on test 2, a 95 on test 3, a 92 on the homework, a 55 on the project, and an 83 on the final. What was the student’s overall average in the course? (Round your answer to one decimal place; add a trailing zero as needed.)
The student’s overall average was %.
