University:
Glendale Community College
Course:
MAT142 | College Mathematics
Academic year:

2022
Views:

308

Pages:

7
Author:

hugdeigury7

Stem and Leaf Displays: A stem and leaf display is a tool that organizes and groups the data while allowing us to see the actual values that make up the data. To construct a stem and leaf display each value is represented by two different groups of digits. The left group is called the stem and the remaining group of digits is called the leaf. There are no rules for the number of digits to be included in the stem. Basically stem and leaf displays break numbers up. Here are a few ways numbers can be broken up using a stem and leaf display. 53 could get broken up 5 Stem 3 Leaf 48 3 Stem leaf or 483 could be either 4 83 Stem leaf 6 could get written 0 Stem 6 Leaf Example: The following data represents the ages of 20 guests at 4 PM when happy hour starts at the Yard House. A stem and leaf display has been started. Finish the stem and leaf display. 27 39 47 60 Stem 2 3 4 5 6 7 28 43 50 62 Leaves 789 129 29 44 56 68 31 44 58 71 32 45 59 72 Notice the Stems are in ascending order. The leaves can be in any order BUT most people like them to ascend also. Also notice that a stem and leaf display looks like a sideways histogram. I will just add the end of each number next to the appropriate number. Stem 2 3 4 5 6 7 Leaves 789 129 34457 0689 028 12 Homework #5-8: Create a stem and leaf display for the given data. 5) The table below indicates the ages of each student in a recent MAT 142 class. Construct a stem and leaf display. 18 20 31 18 20 35 18 21 36 19 25 44 19 28 49 6) Twenty workers at a local mall were asked how many miles they commute to work one way. The data below gives the result of the survey. Construct a stem and leaf display. 1 8 13 18 3 9 14 20 3 9 14 21 7 10 15 21 7 11 17 23 7) Starting salaries of recent computer science majors (in thousands of dollars) are given in the table below. Construct a stem and leaf display. 42 55 62 45 57 64 48 58 65 49 59 66 50 60 67 51 61 73 8) Fifteen students were asked how many times a week they ate fast food. The results are given in the table below. Construct a stem and leaf display. 0 5 14 1 8 15 2 11 20 4 11 21 4 13 22