se,assessmentjde-1 633 16,18 course-id·2723923-1&content;_d :-2460271_1&step-nul
ID: 3275674 • Letter: S
Question
se,assessmentjde-1 633 16,18 course-id·2723923-1&content;_d :-2460271_1&step-null; Queston Completion Status Using the gragh below, answer the questions that follow j What is the name given to this type of graph? O Variable comparison graph Scattergram Dot graph Unfinished line gaph 2 points Save Answer Question 49 e gestos totfolow Miss Bridget teaches i, a smal learning support class The flow are the data from a recent man assessment Som thee elhar students ao u answer What is the variance? 79.33 10 4 11 16 888 2 points Save Answer Question 50 annser the questions that foliow Mss Bridget teaches in a small learming support class The Solow are the data rom a recent math assessment from three of har students 84 80 74 What is the standard deviation 79 33 10 4 11 Type here to search TOSHIBA F9 F10 F11 12 F6 F7 DEL BACKExplanation / Answer
48. The graph in the picture is a dot graph.
49. The scores are 84,80,74.
Mean is (84 + 80 + 74) / 3 = 79.33
Sum of squares of differences SS = (84-79.33)2 + (80-79.33)2 + (74-79.33)2
= 21.8089 + 0.4489 + 28.4089
= 50.6667
Variance = SS / N = 50.6667 / 3 = 16.8889
50. Standard deviation = 16.8889 = 4.11
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