// Numbas version: exam_results_page_options
{"name": "Mario's copy of Descriptive Statistics (P): Mean", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"type": "question", "advice": "<h4>a)</h4>\n<p>To find the mean you first need to sum the numbers, i.e.:</p>\n<p>\\[ \\simplify[]{{a}+{b}+{c}}&nbsp;= \\var{a+b+c} \\]</p>\n<p>Then divide through by the number of values being summed:</p>\n<p>\\[ \\text{Mean} = \\simplify{{a+b+c}/3}&nbsp;\\]</p>\n<h4>b)</h4>\n<p>The mean is</p>\n<p>\\[ \\simplify[]{({a}+{b}+{f}+{c}+{d})/5} = \\simplify[fractionnumbers]{{(a+b+f+c+d)/5}} \\]</p>", "tags": [], "preamble": {"css": "", "js": ""}, "parts": [{"type": "numberentry", "correctAnswerFraction": false, "variableReplacements": [], "scripts": {}, "showPrecisionHint": false, "showCorrectAnswer": true, "prompt": "<p>$\\var{a}, \\var{b}, \\var{c}$</p>", "maxValue": "(a+b+c)/3", "variableReplacementStrategy": "originalfirst", "marks": 1, "minValue": "(a+b+c)/3", "allowFractions": true}, {"type": "numberentry", "correctAnswerFraction": false, "variableReplacements": [], "scripts": {}, "showPrecisionHint": false, "showCorrectAnswer": true, "prompt": "<p>$\\var{a},\\var{b},\\var{f},\\var{c},\\var{d}$</p>", "maxValue": "(a+b+c+f+d)/5", "variableReplacementStrategy": "originalfirst", "marks": 1, "minValue": "(a+b+c+f+d)/5", "allowFractions": true}], "ungrouped_variables": ["a", "b", "c", "d", "f"], "metadata": {"licence": "Creative Commons Attribution 4.0 International", "notes": "", "description": "<p>Compute the means of two small samples.</p>"}, "name": "Mario's copy of Descriptive Statistics (P): Mean", "functions": {}, "rulesets": {}, "statement": "<p>Find the means of the following sets of numbers. Enter your answers as&nbsp;whole numbers or fractions, not decimals.</p>", "variablesTest": {"condition": "", "maxRuns": 100}, "variable_groups": [], "showQuestionGroupNames": false, "question_groups": [{"pickQuestions": 0, "questions": [], "pickingStrategy": "all-ordered", "name": ""}], "variables": {"c": {"templateType": "anything", "group": "Ungrouped variables", "name": "c", "definition": "random(1..9)", "description": ""}, "a": {"templateType": "anything", "group": "Ungrouped variables", "name": "a", "definition": "random(1..9)", "description": ""}, "b": {"templateType": "anything", "group": "Ungrouped variables", "name": "b", "definition": "random(1..9)", "description": ""}, "f": {"templateType": "anything", "group": "Ungrouped variables", "name": "f", "definition": "random(11..15)", "description": ""}, "d": {"templateType": "anything", "group": "Ungrouped variables", "name": "d", "definition": "random(11..15)", "description": ""}}, "contributors": [{"name": "Christian Lawson-Perfect", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/7/"}, {"name": "Mario Orsi", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/427/"}, {"name": "Hayley Moore", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/495/"}]}]}], "contributors": [{"name": "Christian Lawson-Perfect", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/7/"}, {"name": "Mario Orsi", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/427/"}, {"name": "Hayley Moore", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/495/"}]}