6:00 56 Stats Part 1 The data given below show the marks obtained by 65 students in statistics. 5 of 8 \begin{tabular}{rrrrrrrrrrrrrrrr} 15 & 27 & 50 & 45 & 32 & 36 & 41 & 31 & 41 & 48 & 27 & 46 & 56 & 59 & 61 & 64 \\ 1 & 34 & 42 & 45 & 31 & 28 & 27 & 49 & 48 & 47 & 32 & 33 & 35 & 37 & 65 & 64 \\ 28 & 46 & 26 & 46 & 31 & 35 & 33 & 42 & 31 & 41 & 45 & 42 & 44 & 41 & 72 & 38 \\ 37 & 39 & 51 & 54 & 53 & 38 & 55 & 39 & 52 & 38 & 54 & 36 & 37 & & & \end{tabular} Classify the above data, taking an interval, of 5 marks. Solution: Maximum marks \( =72 \) Minimum marks \( =26 \) and the width of class interval, \( \mathrm{h}=5 \). Ch\# 2: Presentation of Data 27 \begin{tabular}{|c|c|c|} \hline Class Intervals & Tally Marks & Frequency \\ \hline \begin{tabular}{l} \( 25-29 \) \\ \( 30-34 \) \\ \( 35-39 \) \\ \( 40-44 \) \\ \( 45-49 \) \\ \( 50-54 \) \\ \( 55-59 \) \\ \( 60-64 \) \\ \( 65-69 \) \\ \( 70-74 \) \\ \end{tabular} & & \begin{tabular}{c} 7 \\ 10 \\ 13 \\ 8 \\ 13 \\ 5 \\ 3 \\ 3 \\ 1 \\ 1 \\ \end{tabular} \\ \hline & Total & 65 \\ \hline \end{tabular} ample 2.2 whing is a set of scores on a final examination in Accounting. Construct a ff hrttinn for these data. Example 2.2 Following is a set of scores on a final examination in Accounting. Construct a frequency distribution for these data. \[ \begin{array}{l} \begin{array}{llllll} 48 & 43 & 35 & 37 & 37 & 25 \end{array} \\ \end{array} \] Solution: \[ \begin{array}{l} \text { Max. value }=48 \\ \text { Min. value }=25 \\ \text { Range }=48-25=23 \end{array} \] Since, size of data is verv small is \( \ldots \)......
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94 81 87 74 79 84 76 90 70 76 75 70 85 71 83 88 99 99 75 68 96 82 73 80 69 61 67 72 64 72 GROUPED DATA Answer the following 1) Solve for the mean, the median, and the mode. Scores 1-5 5 6-10 10 11-15 8 16-20 12 21-25 15 26-30 3 31-35 2 2) Make a frequency distribution table of the following scores with a class size of 5 and find the mean, the median, and the mode. Start with the class interval 60 - 64.
Jerelyn N.
42. The following raw data are the scores of the students in Grade 7 – Masinop in a summative test in Mathematics. Which frequency distribution table correctly represents the data? 18 18 21 17 24 29 16 22 27 28 30 18 16 29 20 25 22 22 23 25 26 19 23 19 20 24 27 21 19 22 A. Scores Tally Frequency 28 – 30 1111 4 25 – 27 ̶I̶I̶I̶I I 5 22 – 24 ̶I̶I̶I̶I I-111 8 19 – 21 ̶I̶I̶I̶I I-11 7 16 – 18 ̶I̶I̶I̶I I-1 6 n = 30 B. Scores Tally Frequency 28 – 30 1111 4 25 – 27 ̶I̶I̶I̶I I-1 6 22 – 24 ̶I̶I̶I̶I I-111 8 19 – 21 ̶I̶I̶I̶I I-1 6 16 – 18 ̶I̶I̶I̶I I-1 6 n = 30 C. Scores Tally Frequency 28 – 30 1111 4 25 – 27 ̶I̶I̶I̶I I- 5 22 – 24 ̶I̶I̶I̶I I-1111 9 19 – 21 ̶I̶I̶I̶I I-11 7 16 – 18 ̶I̶I̶I̶I I 5 n = 30 D. Scores Tally Frequency 28 – 30 1111 4 25 – 27 ̶I̶I̶I̶I I 5 22 – 24 ̶I̶I̶I̶I I-1111 9 19 – 21 ̶I̶I̶I̶I I-11 7 16 – 18 ̶I̶I̶I̶I I 5 n = 30
female - 72 68 75 82 81 60 75 85 80 70 71 84 68 85 82 80 54 81 86 79 99 90 68 82 60 63 67 72 77 51 61 71 81 74 79 76 male - 81 76 94 89 83 78 85 91 83 83 84 80 84 88 77 74 63 69 80 82 89 69 74 97 73 79 55 76 78 81
Kirsty G.
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