// Numbas version: exam_results_page_options {"name": "Statistical notation - notation 2: general statistics", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "Statistical notation - notation 2: general statistics", "tags": [], "metadata": {"description": "

Statistical notation including mean, standard deviation, probability, correlation coefficient, chi-square and others.

", "licence": "None specified"}, "statement": "

Match the symbol to it's statistical meaning

\n

Click 'try another question like this' to get a different symbol!

", "advice": "

Have a look at page about notation

", "rulesets": {}, "extensions": [], "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"question_options": {"name": "question_options", "group": "Ungrouped variables", "definition": "[a, b, c, d, f,g,h, j,k,l,m, n,o]", "description": "", "templateType": "anything", "can_override": false}, "a": {"name": "a", "group": "Ungrouped variables", "definition": "\"$\\\\mu$\"", "description": "", "templateType": "string", "can_override": false}, "b": {"name": "b", "group": "Ungrouped variables", "definition": "\"$\\\\sigma$\"", "description": "", "templateType": "string", "can_override": false}, "c": {"name": "c", "group": "Ungrouped variables", "definition": "\"$\\\\bar{x}$\"", "description": "", "templateType": "string", "can_override": false}, "d": {"name": "d", "group": "Ungrouped variables", "definition": "\"$\\\\sigma_x$\"", "description": "", "templateType": "string", "can_override": false}, "answer_options": {"name": "answer_options", "group": "Ungrouped variables", "definition": "['population mean', 'standard deviation', 'sample mean', 'standard deviation of the random variable X', 'sample standard deviation of the random variable X', 'sample correlation coefficient', 'population correlation coefficient', 'chi-squared (pronounced ki-squared)', 'expected value of X (equal to the population mean)' , 'the probability that X takes the value 5', 'the standardised value of x', 'the probability that A occurs given that B is occurring', 'the population variance']", "description": "", "templateType": "anything", "can_override": false}, "how_many_parts": {"name": "how_many_parts", "group": "Ungrouped variables", "definition": "4", "description": "", "templateType": "anything", "can_override": false}, "shuffle_order": {"name": "shuffle_order", "group": "Ungrouped variables", "definition": "deal(len(question_options))", "description": "", "templateType": "anything", "can_override": false}, "question_long": {"name": "question_long", "group": "Ungrouped variables", "definition": "map(question_options[j],j,shuffle_order)", "description": "", "templateType": "anything", "can_override": false}, "question_short": {"name": "question_short", "group": "Ungrouped variables", "definition": "map(question_long[j],j,0..(how_many_parts-1))", "description": "", "templateType": "anything", "can_override": false}, "answer_long": {"name": "answer_long", "group": "Ungrouped variables", "definition": "map(answer_options[j],j,shuffle_order)", "description": "", "templateType": "anything", "can_override": false}, "answer_short": {"name": "answer_short", "group": "Ungrouped variables", "definition": "map(answer_long[j],j,0..(how_many_parts-1))", "description": "", "templateType": "anything", "can_override": false}, "marking": {"name": "marking", "group": "Ungrouped variables", "definition": "[1]+map(0,j,0..how_many_parts-2\n)", "description": "", "templateType": "anything", "can_override": false}, "f": {"name": "f", "group": "Ungrouped variables", "definition": "\"$s_x$\"", "description": "", "templateType": "string", "can_override": false}, "g": {"name": "g", "group": "Ungrouped variables", "definition": "\"$r$\"", "description": "", "templateType": "string", "can_override": false}, "h": {"name": "h", "group": "Ungrouped variables", "definition": "\"$\\\\rho$\"", "description": "", "templateType": "string", "can_override": false}, "j": {"name": "j", "group": "Ungrouped variables", "definition": "\"$\\\\chi^2$\"", "description": "", "templateType": "string", "can_override": false}, "k": {"name": "k", "group": "Ungrouped variables", "definition": "\"$E(X)$\"", "description": "", "templateType": "string", "can_override": false}, "l": {"name": "l", "group": "Ungrouped variables", "definition": "\"$P(X=5)$\"", "description": "", "templateType": "string", "can_override": false}, "m": {"name": "m", "group": "Ungrouped variables", "definition": "\"$z_x$\"", "description": "", "templateType": "string", "can_override": false}, "n": {"name": "n", "group": "Ungrouped variables", "definition": "\"$P(A|B)$\"", "description": "", "templateType": "string", "can_override": false}, "o": {"name": "o", "group": "Ungrouped variables", "definition": "\"$\\\\sigma^2$\"", "description": "", "templateType": "string", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["question_options", "a", "b", "c", "d", "answer_options", "how_many_parts", "shuffle_order", "question_long", "question_short", "answer_long", "answer_short", "marking", "f", "g", "h", "j", "k", "l", "m", "n", "o"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "1_n_2", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "

What does $\\var{question_short[0]}$ represent?

", "minMarks": 0, "maxMarks": 0, "shuffleChoices": true, "displayType": "radiogroup", "displayColumns": 0, "showCellAnswerState": true, "choices": "answer_short", "matrix": "marking"}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "contributors": [{"name": "Ruth Hand", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3228/"}]}]}], "contributors": [{"name": "Ruth Hand", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/3228/"}]}