Honors Algebra 2
Name ________________________
Chapter 12 Test
Keeney
Period _____ Date ______________
Directions:
This is a take home test.
You may use your book, notes, and calculator.
You
may NOT use another person in any way.
Work that appears to be copied will be
examined closely and questioned.
Read each question.
Show the set up for all calculations for credit.
Use labels where
appropriate.
Circle your answers.
1.
A principal takes a random sample of the classes at her school and finds the
number of students in each class.
The data are:
17, 23, 25, 31, 14, 19, 27, 33, 20,
23, 11, 30, 23, 35, 16, 25, 17, 28, 32, 21
Make a stem-and-leaf plot of the data.
Find the mean, median, and mode for the data.
2.
A travel agent is interested in the length of time people in a town go on vacation.
The results from a random sample of people in the town are shown below:
5
3
4
5
7
6
5
3
3
4
5
7
3
4
4
6
3
5
7
5
4
5
6
5
4
Make a histogram of the data.
If one person from the sample is randomly
selected, find the probability that the person spends at least 5 days on
vacation.