A. MEAN, MEDIAN AND MODE FOR UNGROUPED DATA 1. Find variance and standard deviation for the LDL cholesterol level in a sample of ten heart patients. 132 139 162 147 133 160 145 150 148 153 2. Find the variance and standard deviation, for the LDL cholesterol level in a sample of ten heart patients on a special diet. 127 113 152 131 138 148 110 135 152 158 3. Statistics exam scores for 20 students are as follows: 50; 53; 59; 59; 63; 63; 72; 72; 72; 72; 72; 76; 78; 81; 83; 84; 84; 84; 90; 93 Compute the variance and standard deviation

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