Exam 4: Understanding and Comparing Distributions

The side-by-side boxplots show the cumulative college GPAs for sophomores, juniors, and seniors taking an intro stats course in Autumn 2012. a.Which class (sophomore, junior, or senior) had the lowest cumulative college GPA? What is the approximate value of that GPA? b.Which class has the highest median GPA, and what is that GPA? c.Which class has the largest range for GPA, and what is it? d.Which class has the most symmetric set of GPAs? The most skewed set of GPAs?

The boxplots show prices of used cars (in thousands of dollars) advertised for sale at three Different car dealers.Which dealer has the smallest price range, and what is it?

The boxplots show prices of used cars (in thousands of dollars) advertised for sale at three different car dealers. a. Which dealer offers the cheapest car offered, and at what price? b. Which dealer has the lowest median price, and how much is it? c. Which dealer has the smallest price range, and what is it? d. Which dealer's prices have the smallest IQR, and what is it? e. Which dealer generally sells cars cheapest? Explain.

The boxplots show prices of used cars (in thousands of dollars) advertised for sale at three Different car dealers.Which dealer's prices have the smallest IQR, and what is it?

The following boxplots show monthly sales revenue figures ($ thousands) for a discount Office supply company with locations in three different regions of the U.S.(Northeast, Southeast, and West).Which of the following statements is false?

At www.census.gov you can create a "population pyramid" for any country.These pyramids Are back-to-back histograms.This pyramid shows Mexico's 2000 female population and the Census bureau's projection for 2050.Check all that apply.

The body temperature of students is taken each time a student goes to the nurse's office.The five-number summary for the temperatures (in degrees Fahrenheit) of students on a particular day is: Min Q1 Median Q3 Max 96. 97.8 98.2 98. 101. a.Would you expect the mean temperature of all students who visited the nurse's office to be higher or lower than the median? Explain. b. After the data were picked up in the afternoon, three more students visited the nurse’s office with temperatures of 96.7º, 98.4º, and 99.2º. Were any of these students outliers? Explain.

The boxplots show prices of used cars (in thousands of dollars) advertised for sale at three Different car dealers.Which dealer generally sells cars cheapest?

The boxplots show prices of used cars (in thousands of dollars) advertised for sale at three Different car dealers.Which dealer has the lowest median price, and how much is it?

The five-number summary for midterm scores (number of points; the maximum possible score was 50 points) from an intro stats class is: Min Q1 Median Q3 Max 16.5 32 39 43.5 48.5 a. Would you expect the mean midterm score of all students who took the midterm to be higher or lower than the median? Explain. b. Based on the five-number summary, are any of the midterm scores outliers? Explain.

The side-by-side boxplots show the cumulative college GPAs for sophomores, juniors, and Seniors taking an intro stats course in Autumn 2003. Which class has the largest range for GPA?

The side-by-side boxplots show the cumulative college GPAs for sophomores, juniors, and Seniors taking an intro stats course in Autumn 2003. Which class has the highest median GPA?

One thousand students from a local university were sampled to gather information such as gender, high school GPA, college GPA, and total SAT scores. The results were used to create histograms displaying high school grade point averages (GPA’s) for both males and females. Compare the grade distribution of males and females.

At www.census.gov you can create a "population pyramid" for any country.These pyramids Are back-to-back histograms.This pyramid shows Mexico's 2000 female population and the Census bureau's projection for 2050.Check all that apply.

How do sports salaries compare? Two sets of histograms below show the distributions of Salaries for Major League Baseball and the National Football League.What set of histograms Makes it easier to compare the distributions? And for what reasons? Check all that apply.

One thousand students from a local university were sampled to gather information such as Gender, high school GPA, college GPA, and total SAT scores.The results were used to create Histograms displaying high school grade point averages (GPAs) for both males and females. Compare the grade distribution of males and females.Check all that apply.

On the right are two dotplots made for the heights of 200 randomly chosen students. The heights are separated by gender. Describe and compare the distributions

The side-by-side boxplots show the cumulative college GPAs for sophomores, juniors, and Seniors taking an intro stats course in Autumn 2003. What is approximately the GPA of The class with the highest m edian GPA?

At www.census.gov you can create a "population pyramid" for any country.These pyramids are back-to-back histograms.This pyramid shows Mexico's 2000 female population and the census bureau's projection for 2050.Write a few sentences summarizing the changes that are forecast.

The side-by-side boxplots show the cumulative college GPAs for sophomores, juniors, and Seniors taking an intro stats course in Autumn 2003. In which class (sophomore, junior, or senior) do you find the student with the lowest Cumulative college GPA?