p; ].","back":"The final value in a cumulative frequency table must equal the total frequency.","points":null},{"id":"14d0a2f8-2d6e-4386-affd-9ac95ef7a556","cardType":"basic","front":"When plotting a cumulative frequency graph, which value from the class interval is used for the horizontal coordinate?","back":"The upper boundary (upper bound).","points":1},{"id":"0c7fb0f5-48e2-4304-8536-fe04282e1e00","cardType":"basic","front":"What is the starting coordinate for a cumulative frequency graph?","back":"The lower boundary of the first class at cumulative frequency 0.","points":1},{"id":"1a1aa664-4267-4d23-958c-79c53e5f62d8","cardType":"cloze","front":"A common mistake is plotting the [ ] instead of the upper boundary.","back":"A common mistake is plotting the midpoint instead of the upper boundary.","points":null},{"id":"8f183550-7596-4a2a-9b31-6218754278b3","cardType":"cloze","front":"A common mistake is plotting the midpoint instead of the [ ].","back":"A common mistake is plotting the midpoint instead of the upper boundary.","points":null},{"id":"50d722e2-5a09-4ecc-a96c-9e79713849ce","cardType":"cloze","front":"Individual points on a cumulative frequency graph should be joined with a [ ].","back":"Individual points on a cumulative frequency graph should be joined with a smooth increasing curve.","points":null},{"id":"5948dc59-3d34-4d37-9407-674ede3bc398","cardType":"basic","front":"How is the vertical position of the lower quartile ($Q_1$) calculated?","back":"$$\\frac{N}{4}$ (where $N$ is the total frequency).","points":1},{"id":"38778ca3-58f1-4b58-bee1-118d5e9141c3","cardType":"basic","front":"How is the vertical position of the median calculated?","back":"$$\\frac{N}{2}$ (where $N$ is the total frequency).","points":1},{"id":"b2326c3d-5252-453e-86bd-fa4ea206934a","cardType":"basic","front":"How is the vertical position of the upper quartile ($Q_3$) calculated?","back":"$$\\frac{3N}{4}$ (where $N$ is the total frequency).","points":1},{"id":"c7cad66f-dbae-4278-8d7e-eda074b84b81","cardType":"basic","front":"What are the steps to estimate a quartile from a cumulative frequency graph?","back":"

Find the position on the vertical axis
Read across to the curve
Read down to the horizontal axis

","points":3},{"id":"ef42003f-c798-47a4-b429-1a007b05aff4","cardType":"basic","front":"How is the interquartile range (IQR) calculated?","back":"$$Q_3 - Q_1$","points":1},{"id":"d708541e-147f-42d8-a76c-b024eed3dc6f","cardType":"cloze","front":"The interquartile range measures the spread of the [ ] of the data.","back":"The interquartile range measures the spread of the middle 50% of the data.","points":null},{"id":"d9cb2711-d2c9-4f71-a785-349eeac6c7a1","cardType":"basic","front":"Why are values read from a cumulative frequency graph called estimates?","back":"

The original data is grouped
The curve is drawn by hand

","points":2},{"id":"486858b8-a564-4107-b3b5-93a163e37943","cardType":"basic","front":"Which five values are used to construct a box plot?","back":"

Lowest value
Lower quartile ($Q_1$)
Median
Upper quartile ($Q_3$)
Highest value

","points":3},{"id":"8dc04837-1153-4474-8b55-08a68371f7d9","cardType":"cloze","front":"In a box plot, the

Cumulative Frequency Flashcards

Cumulative Frequency Flashcards

Cumulative Frequency Flashcards

Cumulative Frequency Flashcards