Flashcards","topicId":"a73491c6-d905-4c60-922d-769a4d9620b8","topicSlug":"population-and-sample","cards":[{"id":"b5e24e6a-4acb-425b-8421-74629a716669","cardType":"cloze","front":"The [ ] is the complete set of people, objects or observations about which information is required.","back":"The population is the complete set of people, objects or observations about which information is required.","points":null,"mcqOptions":null},{"id":"0cc9069b-03f1-488a-8fa3-51c7cf8c92d7","cardType":"cloze","front":"A [ ] is a subset of the population from which data are collected.","back":"A sample is a subset of the population from which data are collected.","points":null,"mcqOptions":null},{"id":"10dcccee-f651-483a-aefa-7aff8c616427","cardType":"cloze","front":"An individual person or object within a population is a [ ].","back":"An individual person or object within a population is a sampling unit.","points":null,"mcqOptions":null},{"id":"75eab052-b554-4273-ac8b-5785f9e6fa41","cardType":"cloze","front":"The number of sampling units in a sample is the [ ].","back":"The number of sampling units in a sample is the sample size.","points":null,"mcqOptions":null},{"id":"ec6d7f74-1774-4b68-ba22-2e3ce81d3158","cardType":"basic","front":"What symbol commonly represents sample size?","back":"$n$","points":1,"mcqOptions":null},{"id":"78d14008-5bed-40f5-bb13-1ac6a6b574df","cardType":"cloze","front":"Collecting data from every member of a population is called a [ ].","back":"Collecting data from every member of a population is called a census.","points":null,"mcqOptions":null},{"id":"7b1473f3-7706-4fbd-b03d-3a027db6ee2c","cardType":"basic","front":"Which group determines whether a group is a population or a sample?","back":"The group about which the conclusion is required.","points":1,"mcqOptions":null},{"id":"7770a1c7-a582-4506-ad77-2a7db1fc5aa3","cardType":"basic","front":"The heights of one tutor group are measured to investigate all Year 12 students at the school. What is the population?","back":"All Year 12 students at the school.","points":1,"mcqOptions":null},{"id":"6080fcd9-0a80-4b3e-ac8a-38b79a1271d8","cardType":"basic","front":"In the Year 12 height investigation, what is the sample?","back":"The measured tutor group.","points":1,"mcqOptions":null},{"id":"d60e8cfa-48d7-4d54-bb97-8bcb94f54df3","cardType":"basic","front":"A quality controller measures 120 of 18,000 bolts produced that day. What is the sample size?","back":"$n=120$","points":1,"mcqOptions":null},{"id":"0299749a-beb6-452e-9f84-7609dc758825","cardType":"basic","front":"Why must a population often specify place and time?","back":"To define the investigation's scope precisely.","points":2,"mcqOptions":null},{"id":"590de920-ea35-4fe3-95ef-df476e870c76","cardType":"basic","front":"Why are samples often used instead of censuses?","back":"They require fewer resources, such as time and money.","points":2,"mcqOptions":null},{"id":"c437441b-071b-4e97-b957-8a20570588b5","cardType":"basic","front":"Why must battery lifetime usually be tested using a sample?","back":"Lifetime testing uses up the tested batteries.","points":2,"mcqOptions":null},{"id":"e2b6d423-bbbd-4f88-a462-ffa29a379cee","cardType":"basic","front":"Why should sealed food packets be tested using a sample?","back":"Accurate testing destroys the opened packets.","points":2,"mcqOptions":null},{"id":"0bc4e0f8-0b5b-45c9-89d4-20e9da6b9729"

2.1.1 Population and sample Flashcards

2.1.1 Population and sample Flashcards