https://www.khanacademy.org/math/ap-statistics/density-curves-normal-distribution-ap/percentiles-cumulative-relative-frequency/v/calculating-percentile 2022-10-07T00:58:19.561984208Z Calculating percentile Learn how to calculate the percentile rank for a given data point. video https://cdn.kastatic.org/ka_thumbnails_cache/29c6a7b8-b2ee-4440-b610-39dd556dfae0_1280_720_base.png Calculating percentile Learn how to calculate the percentile rank for a given data point. https://cdn.kastatic.org/ka-youtube-converted/Ngyt8Q5tWkU.mp4/Ngyt8Q5tWkU.mp4 218 Averages from cumulative frequency table https://www.khanacademy.org/math/cambridge-o-level-mathematics-4024/x3f4c73d082a798eb:statistics/x3f4c73d082a798eb:averages-from-cf-table/v/obtaining-median-from-given-curve 2026-03-10T04:30:37.966653692Z Obtaining Median from given curve Created by Khan Academy Khan Academy Pakistan video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Obtaining Median from given curve Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/n8xnIvClNFY.mp4/n8xnIvClNFY.mp4 503 Averages from cumulative frequency table https://www.khanacademy.org/math/ap-statistics/density-curves-normal-distribution-ap/percentiles-cumulative-relative-frequency/e/calculating-percentiles 2021-07-29T14:00:50.153398958Z Calculate percentiles Practice working with percentiles. Jeff Dodds exercise https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6th/v/calculating-interquartile-range-iqr 2021-07-01T17:39:49Z Interquartile range (IQR) The IQR describes the middle 50% of values when ordered from lowest to highest. To find the interquartile range (IQR), ​first find the median (middle value) of the lower and upper half of the data. These values are quartile 1 (Q1) and quartile 3 (Q3). The IQR is the difference between Q3 and Q1.   video https://cdn.kastatic.org/googleusercontent/1dM5VIaSdqW2AZdzrYN2VRde7taL_-C1sVBNWw9IfSKnaQ8X-qKdR4G3AE5vC4MVwnjsfZQuQ6cTnshyZdvRon0ZlA Interquartile range (IQR) The IQR describes the middle 50% of values when ordered from lowest to highest. To find the interquartile range (IQR), ​first find the median (middle value) of the lower and upper half of the data. These values are quartile 1 (Q1) and quartile 3 (Q3). The IQR is the difference between Q3 and Q1.   https://cdn.kastatic.org/ka-youtube-converted/qLYYHWYr8xI.mp4/qLYYHWYr8xI.mp4 372 Averages from cumulative frequency table https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6th/a/interquartile-range-review 2024-06-28T19:35:09.634529642Z Interquartile range review Calculate interquartile range from small data sets with even or odd numbers of data points. article https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6th/e/calculating-the-interquartile-range--iqr- 2026-03-31T08:52:19.062243676Z Interquartile range (IQR) Practice finding the interquartile range (IQR) of a data set. Ben S exercise https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-data-statistics/cc-6th-box-whisker-plots/e/interpreting-quartiles-on-box-plots 2026-03-25T15:00:42.896818303Z Interpreting quartiles Practice understanding the meaning of quartiles of data sets. Ben S exercise