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{"ops":[{"insert":"(4.6 4.5 4.7 4.6 4.5 4.6 4.3 4.6 4.8 4.2\n4.6 4.5 4.7 4.5 4.5 4.6 4.6 4.6 4.8 4.6)\n1. Use the ungrouped data that you have been\nsupplied with to complete the following:\n(a) Arrange the data into equal classes\n(b) Determine the frequency distribution\n(c) Draw the frequency histogram\n(d) Create a cumulative frequency table for\nthe data\n(e) Draw the cumulative frequency graph\n(f) Use your cumulative frequency graph to\ndetermine if the data is normally distributed\nor not?\n(g) Calculate: i) the mean and standard\ndeviation; li) the upper and lower quartile\nvalues; and ili) the interquartile range for the\ngiven data.\n\nquestion2:\nForce (N)        0    20   40  60  80\nLength (mm)  22 110 215 330 410\nUse the table of measurements of length and\nforce that you have been supplied with to\ncomplete the following activities:\n(a) Draw a scatter graph for your given data.\nDescribe what the scatter graph is indicating.\n(b) Use the scatter graph to estimate the\nlength for a force of 57N\n(c) Calculate the line of regression of\nextension on force (Y on X)\n(d) Calculate the regression coefficient\n(e) Explain what the regression coefficient\nindicates?\n(f) Use the equation for the line of regression\nto predict the length for a force of 57N\n(g) Compare the calculated value with the\nvalue that you have determined from the\nscatter graph.\n"}]}

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