Presentation is loading. Please wait.

Presentation is loading. Please wait.

Stem-and-leaf display

Similar presentations


Presentation on theme: "Stem-and-leaf display"— Presentation transcript:

1 Stem-and-leaf display
One of the most useful technique of data exploratory data analysis, steam-and-leaf display. That is a data summarizing technique using a simple chart or diagram. It gives us the rank order of the items in the data set and the shape of distribution. BIC Prepaid By:Rajyagor Bhargav

2 Steam-And-Leaf Display
Grades on mid term exam 79 78 67 76 87 85 73 66 99 84 72 57 94 63 51 48 50 61 71 82 93 100 89 BIC Prepaid By:Rajyagor Bhargav

3 BIC Prepaid By:Rajyagor Bhargav
Step 1 Make vertical list of stems(the first digit of each data item)like this 7 6 8 9 5 4 10 Arrange above stems in ascending order like 4 5 6 7 BIC Prepaid By:Rajyagor Bhargav

4 BIC Prepaid By:Rajyagor Bhargav
Step 2 Draw a vertical line to the right of these stems, and list the leaves(the next digit for all the stems)to the encounter them in the original data set. 4 8 10 0 BIC Prepaid By:Rajyagor Bhargav

5 BIC Prepaid By:Rajyagor Bhargav
Step 3 Arrange all of the leaves in each row in rank order. 4 8 10 0 Each row in the resulting stem and leaf display is a stem and each data value on that stem is a leaf. BIC Prepaid By:Rajyagor Bhargav

6 BIC Prepaid By:Rajyagor Bhargav
Step 4 Finally turn page 90 degree counterclockwise and draw rectangle around the data in each stem. 9 8 8 9 7 6 7 6 3 5 BIC Prepaid By:Rajyagor Bhargav


Download ppt "Stem-and-leaf display"

Similar presentations


Ads by Google