Splash Screen

Over Lesson 13–1 5-Minute Check 5 Over Lesson 13-4

Then/Now You have already displayed data in a box-and- whisker plot. (Lesson 13–4) Display data using stem-and-leaf plots. Interpret data in a stem-and-leaf plot.

Example 1 Draw a Stem-and-Leaf Plot Step 1The stems are the greatest place values of the data. List the stems 1, 2, 3 in order in the Stem column. Write the ones digits to the right of the corresponding stems in the Leaf column. Step 2Add a key that explains how to read the stems and leaves. Include a title. Answer: FOOD Display the data in a stem-and-leaf plot.

Example 1 CYP QUESTION

Example 2 CYP A.median, 24; mode, 12 B.median, 24; mode, 4 C.median, 24; mode, 24 D.median, 20; mode, 24 A. PETS The stem-and-leaf plot lists the percent of students in each class in a middle school who owns pets. Find the median and mode.

Then/Now

Example 3 CYP A A.malesB.females C.Both groups had an equally high score. D.cannot be determined A. EXAM SCORES The exam scores earned on the first test in a particular class are shown for male and female students. Which group of students had the higher test scores? MaleFemale |8 = 827|4 = 74

Example 3 CYP B A.malesB.females C.Both groups had equally varied scores. D.cannot be determined B. EXAM SCORES The exam scores earned on the first test in a particular class are shown for male and female students. Which group of students had more varied test scores? MaleFemale |8 = 827|4 = 74

Then/Now