quency}}{\\text{class width}}}$$.","points":null},{"id":"53dc99a6-a68e-483a-849b-f89f15eff60b","cardType":"basic","front":"What is represented on the vertical axis (y-axis) of a histogram?","back":"Frequency density.","points":1},{"id":"4dfbfa29-f427-47d8-a9d9-5a988e4b222f","cardType":"cloze","front":"If data is measured to the nearest whole number, the class width of the interval 10–14 is [ ].","back":"If data is measured to the nearest whole number, the class width of the interval 10–14 is 5.","points":null},{"id":"5d55b858-ebe9-4eda-9da2-bc9455f4115e","cardType":"basic","front":"Why do the bars in a histogram typically touch?","back":"The data is continuous (or treated as continuous).","points":1},{"id":"146f89ed-482c-4f72-990e-989b680d5782","cardType":"basic","front":"How is the class width calculated for the interval 9–13 when data is rounded to the nearest integer?","back":"

Use class boundaries 8.5 to 13.5
$13.5 - 8.5 = 5$

","points":2},{"id":"74fd0b93-f931-40db-853a-71b8d4fa2bac","cardType":"basic","front":"If two classes have the same frequency but class A is wider than class B, which bar is taller?","back":"Class B (the narrower class has a higher frequency density).","points":2},{"id":"0b939afa-e433-49b8-a985-2f02b14bd5c1","cardType":"basic","front":"How do you calculate frequency from a histogram bar?","back":"$$\\text{class width} \\times \\text{frequency density}$","points":1},{"id":"b050f2f0-0fcb-4d55-8228-c03a8833817d","cardType":"cloze","front":"When a histogram bar is measured in cm on paper, the horizontal scale links class width to [ ].","back":"When a histogram bar is measured in cm on paper, the horizontal scale links class width to drawn width.","points":null},{"id":"378780fa-685c-4d5a-b4f6-2cc408d94759","cardType":"cloze","front":"When a histogram bar is measured in cm on paper, the vertical scale links frequency density to [ ].","back":"When a histogram bar is measured in cm on paper, the vertical scale links frequency density to drawn height.","points":null},{"id":"2880419a-d536-47ee-bc78-3799c1c74d19","cardType":"basic","front":"A variable is measured to the nearest whole number. What are the class boundaries for the interval 20–22?","back":"19.5 and 22.5","points":1},{"id":"f22b19b4-8d28-446b-8422-39c9e8af00a0","cardType":"basic","front":"A class 4–8 (nearest whole number) has a frequency of 10. What is its frequency density?","back":"

Class width = 5
$10 \\div 5 = 2$

","points":2},{"id":"f3ad4d0e-c7ef-42e7-a742-36aa8ef0197f","cardType":"cloze","front":"To estimate the probability of an event from a histogram, you divide the [ ] by the total frequency.","back":"To estimate the probability of an event from a histogram, you divide the estimated frequency for the event by the total frequency.","points":null},{"id":"d78800d3-a522-4999-98ac-a7602cdaf3ac","cardType":"cloze","front":"To estimate the probability of an event from a histogram, you divide the estimated frequency for the event by the [ ].","back":"To estimate the probability of an event from a histogram, you divide the estimated frequency for the event by the total fr

Histograms Flashcards

Histograms Flashcards

Histograms Flashcards

Histograms Flashcards