Page 22 - Basic Statistics

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f. The following the stem and leaf diagram when use separated of stem to 2
parts :

2 15 : 679

7 16 : 2234
… 16 : 5566667788899999

… 17 : …

… 17 : …
… 18 : …

… 18 : 6688
… 19 : 34

Figure of Excercise 5 The stem and leaf diagram with stem split method

Problem 1.2 :

1. Here is the data on the test results of 50 students :

26 42 8 28 39 78 32 54 93 11
27 33 22 78 75 83 62 76 77 67

77 80 7 26 18 10 34 30 36 43
79 41 24 91 90 63 87 55 60 48

35 35 51 67 10 76 34 47 51 33

a. What is range of the data above.

b. Create a frequency table, complete with columns for the middle point,

and a column for the cumulative frequency.

c. In the class containing the median, explain the actual limits of the class
interval and the middle point, through a presentation of images.

d. Draw histogram and polygon of the data on the test results.

e. Create a the stem and leaf diagram for data set on the test results

f. Create a the stem and leaf diagram for data set on the test results, by

separating each stem into 2 parts.

~~* CHAPTER 1 PRESENTATION OF DATA *~~