Chapter 2: Descriptive Statistics
Q. 2.24
The following data set shows the heights in inches for the boys in a class of students.
The following data set shows the heights in inches for the girls in a class of students.
Construct a box plot using a graphing calculator for each data set, and state which box plot has the wider spread for the middle of the data.
Q. 2.26
The following data show the number of months patients typically wait on a transplant list before getting surgery.
The data are ordered from smallest to largest. Calculate the mean and median.
Q. 2.28
The number of books checked out from the library from students are as follows:
Find the mode.
Q. 2.29
Five credit scores are The data set is bimodal because the scores and each occur twice. Consider the annual earnings of workers at a factory. The mode is and occurs times out of The median is and the mean is What would be the best measure of the 鈥渃enter鈥?
Q.23
Listed are ages for Academy Award winning best actors in order from smallest to largest. a. Find the percentile.
b. Find the percentile.
Q. 2.3
The table shows the number of wins and losses the Atlanta Hawks have had in seasons. Create a side-by-side stem-and-leaf plot of these wins and losses.


Q. 2.31
Discuss the mean, median, and mode for each of the following problems. Is there a pattern between the shape and measure of the center?

Q. 2.32
On a baseball team, the ages of each of the players are as follows:
Use your calculator or computer to find the mean and standard deviation. Then find the value that is two standard deviations above the mean.
Q.2.33
The following data show the different types of pet food stores in the area carry. Calculate the sample mean and the sample standard deviation to one decimal place using a calculator.
Q.2.35
Two students, John and Ali, from different high schools, wanted to find out who had the highest GPA when compared to his school. Which student had the highest GPA when compared to his school?
