// Numbas version: finer_feedback_settings
{"name": "Julie's copy of Jack's copy of SOEE5154 - Mean, median, mode and standard deviation", "extensions": ["stats"], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"parts": [{"marks": 0, "variableReplacementStrategy": "originalfirst", "variableReplacements": [], "type": "gapfill", "showCorrectAnswer": true, "showFeedbackIcon": true, "prompt": "<p>$\\text{mean}=\\;\\;$[[0]]</p>\n<p>Enter decimal answers to 1 decimal places.</p>", "gaps": [{"precision": "1", "precisionType": "dp", "precisionMessage": "You have not given your answer to the correct precision.", "type": "numberentry", "precisionPartialCredit": "0", "correctAnswerFraction": false, "showCorrectAnswer": true, "minValue": "1/7*{(a1+a2+a3+a4+a5+a6+a7)}", "strictPrecision": false, "variableReplacementStrategy": "originalfirst", "showPrecisionHint": false, "variableReplacements": [], "marks": "1", "allowFractions": false, "showFeedbackIcon": true, "maxValue": "1/7*{(a1+a2+a3+a4+a5+a6+a7)}", "notationStyles": ["plain", "en", "si-en"], "scripts": {}, "correctAnswerStyle": "plain"}], "scripts": {}}, {"marks": 0, "variableReplacementStrategy": "originalfirst", "variableReplacements": [], "type": "gapfill", "showCorrectAnswer": true, "showFeedbackIcon": true, "prompt": "<p>$\\text{median}=\\;\\;$[[0]]</p>", "gaps": [{"correctAnswerStyle": "plain", "type": "numberentry", "correctAnswerFraction": false, "showCorrectAnswer": true, "minValue": "{a4}", "variableReplacementStrategy": "originalfirst", "variableReplacements": [], "marks": 2, "allowFractions": false, "showFeedbackIcon": true, "maxValue": "{a4}", "notationStyles": ["plain", "en", "si-en"], "scripts": {}}], "scripts": {}}, {"marks": 0, "variableReplacementStrategy": "originalfirst", "variableReplacements": [], "type": "gapfill", "showCorrectAnswer": true, "showFeedbackIcon": true, "prompt": "<p>$\\text{mode}=\\;\\;$[[0]]</p>", "gaps": [{"correctAnswerStyle": "plain", "type": "numberentry", "correctAnswerFraction": false, "showCorrectAnswer": true, "minValue": "{a4}", "variableReplacementStrategy": "originalfirst", "variableReplacements": [], "marks": 2, "allowFractions": false, "showFeedbackIcon": true, "maxValue": "{a4}", "notationStyles": ["plain", "en", "si-en"], "scripts": {}}], "scripts": {}}, {"marks": 0, "variableReplacementStrategy": "originalfirst", "variableReplacements": [], "type": "gapfill", "showCorrectAnswer": true, "showFeedbackIcon": true, "prompt": "<p>$\\text{range}=\\;\\;$[[0]]</p>", "gaps": [{"showpreview": true, "answersimplification": "std", "type": "jme", "checkingaccuracy": 0.01, "variableReplacementStrategy": "originalfirst", "showCorrectAnswer": true, "vsetrange": [0, 1], "vsetrangepoints": 5, "answer": "{a2-a3}", "checkvariablenames": false, "expectedvariablenames": [], "variableReplacements": [], "marks": 2, "checkingtype": "absdiff", "showFeedbackIcon": true, "scripts": {}}], "scripts": {}}], "ungrouped_variables": ["a1", "a3", "a2", "a5", "a4", "a7", "a6"], "functions": {}, "extensions": ["stats"], "variables": {"a4": {"description": "", "group": "Ungrouped variables", "name": "a4", "definition": "random(1..3)", "templateType": "anything"}, "a7": {"description": "", "group": "Ungrouped variables", "name": "a7", "definition": "a4", "templateType": "anything"}, "a2": {"description": "", "group": "Ungrouped variables", "name": "a2", "definition": "random(7..8)", "templateType": "anything"}, "a5": {"description": "", "group": "Ungrouped variables", "name": "a5", "definition": "random(-4..-3)", "templateType": "anything"}, "a3": {"description": "", "group": "Ungrouped variables", "name": "a3", "definition": "random(-6..-5)", "templateType": "anything"}, "a1": {"description": "", "group": "Ungrouped variables", "name": "a1", "definition": "random(-2..-1)", "templateType": "anything"}, "a6": {"description": "", "group": "Ungrouped variables", "name": "a6", "definition": "random(4..6)", "templateType": "anything"}}, "name": "Julie's copy of Jack's copy of SOEE5154 - Mean, median, mode and standard deviation", "advice": "<p>Mean: $\\mu = \\frac{1}{N}\\sum\\limits_{i=1}^N x_i$</p>\n<p>Median: middle value</p>\n<p>Mode: most common value</p>\n<p>Range: Highest value - lowest value</p>", "statement": "<p>For the last 7 days in October, the express train arrived late at it's destination by the times (in minutes) listed below. A negative number means that the trian was early by that number of minutes. Calculate the <strong>mean</strong>, <strong>median</strong>, <strong>mode</strong> and <strong>range&nbsp;</strong>of the data.</p>\n<p>$\\var{a1}, \\var{a2}, \\var{a3}, \\var{a4}, \\var{a5}, \\var{a6}, \\var{a7}$ .</p>", "variablesTest": {"condition": "", "maxRuns": 100}, "variable_groups": [], "metadata": {"description": "<div class=\"description\">\n<p>Exam covering questions on the Errorsr part of the SOEE5154M Maths course.</p>\n<p>Topics covered are calculating the mean, median, mode and standard deviation.</p>\n<p>rebelmaths</p>\n</div>", "licence": "Creative Commons Attribution 4.0 International"}, "tags": ["median", "mode", "rebelmaths", "sample mean", "standard deviation", "statistics"], "rulesets": {"std": ["all", "!collectNumbers", "fractionNumbers", "!noLeadingMinus"]}, "preamble": {"css": "", "js": ""}, "type": "question", "contributors": [{"name": "Julie Crowley", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/113/"}]}]}], "contributors": [{"name": "Julie Crowley", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/113/"}]}