Sheet 1 · Class Interval o - 20 20-40 40-60 60-80 80 - 100 100 - 120 Frequency (fi) 10 Class mark (Xi) 10 30 50 70 90 110 50 50. 50 - 30 20 2060 + 30 fl + 70 h

Page 1 <img data-url='document/sheet-1-class-interval-o-20-20-40-40-60-60-80-80-100-100-120-frequency.html?page=1' data-page='1' class='cut-thumb lazyload' alt='Page 1: Sheet 1 · Class Interval o - 20 20-40 40-60 60-80 80 - 100 100 - 120 Frequency (fi) 10 Class mark (Xi) 10 30 50 70 90 110 50 50. 50 - 30 20 2060 + 30 fl + 70 h' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader042.cupdf.com/reader042/viewer/2022031514/5ce6598a88c993812f8c4d72/html5/thumbnails/1.jpg' width='140' height='200' /> ( ) Sheet 1

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Page 2 <img data-url='document/sheet-1-class-interval-o-20-20-40-40-60-60-80-80-100-100-120-frequency.html?page=2' data-page='2' class='cut-thumb lazyload' alt='Page 2: Sheet 1 · Class Interval o - 20 20-40 40-60 60-80 80 - 100 100 - 120 Frequency (fi) 10 Class mark (Xi) 10 30 50 70 90 110 50 50. 50 - 30 20 2060 + 30 fl + 70 h' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader042.cupdf.com/reader042/viewer/2022031514/5ce6598a88c993812f8c4d72/html5/thumbnails/2.jpg' width='140' height='200' /> A3.

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Page 3 <img data-url='document/sheet-1-class-interval-o-20-20-40-40-60-60-80-80-100-100-120-frequency.html?page=3' data-page='3' class='cut-thumb lazyload' alt='Page 3: Sheet 1 · Class Interval o - 20 20-40 40-60 60-80 80 - 100 100 - 120 Frequency (fi) 10 Class mark (Xi) 10 30 50 70 90 110 50 50. 50 - 30 20 2060 + 30 fl + 70 h' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader042.cupdf.com/reader042/viewer/2022031514/5ce6598a88c993812f8c4d72/html5/thumbnails/3.jpg' width='140' height='200' /> A5.

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Page 4 <img data-url='document/sheet-1-class-interval-o-20-20-40-40-60-60-80-80-100-100-120-frequency.html?page=4' data-page='4' class='cut-thumb lazyload' alt='Page 4: Sheet 1 · Class Interval o - 20 20-40 40-60 60-80 80 - 100 100 - 120 Frequency (fi) 10 Class mark (Xi) 10 30 50 70 90 110 50 50. 50 - 30 20 2060 + 30 fl + 70 h' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader042.cupdf.com/reader042/viewer/2022031514/5ce6598a88c993812f8c4d72/html5/thumbnails/4.jpg' width='140' height='200' /> A7.

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Page 5 <img data-url='document/sheet-1-class-interval-o-20-20-40-40-60-60-80-80-100-100-120-frequency.html?page=5' data-page='5' class='cut-thumb lazyload' alt='Page 5: Sheet 1 · Class Interval o - 20 20-40 40-60 60-80 80 - 100 100 - 120 Frequency (fi) 10 Class mark (Xi) 10 30 50 70 90 110 50 50. 50 - 30 20 2060 + 30 fl + 70 h' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader042.cupdf.com/reader042/viewer/2022031514/5ce6598a88c993812f8c4d72/html5/thumbnails/5.jpg' width='140' height='200' /> A9.

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Page 6 <img data-url='document/sheet-1-class-interval-o-20-20-40-40-60-60-80-80-100-100-120-frequency.html?page=6' data-page='6' class='cut-thumb lazyload' alt='Page 6: Sheet 1 · Class Interval o - 20 20-40 40-60 60-80 80 - 100 100 - 120 Frequency (fi) 10 Class mark (Xi) 10 30 50 70 90 110 50 50. 50 - 30 20 2060 + 30 fl + 70 h' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader042.cupdf.com/reader042/viewer/2022031514/5ce6598a88c993812f8c4d72/html5/thumbnails/6.jpg' width='140' height='200' />

Sheet 1 · Class Interval o - 20 20-40 40-60 60-80 80 - 100 100 - 120 Frequency (fi) 10 Class mark (Xi) 10 30 50 70 90 110 50 50. 50 - 30 20 2060 + 30 fl + 70 h

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