https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-basic-prob/v/basic-probability 2021-07-01T02:19:32Z Intro to theoretical probability We give you an introduction to probability through the example of flipping a quarter and rolling a die. Sal Khan video https://cdn.kastatic.org/googleusercontent/QbRPrxkNbr31HkIoHifM36nu8DPQW3vg7R0gB5GMqyAgY7KtIurP0_WVMG-uad7-eERI8QACnEvgvqciaw8wVpBB Intro to theoretical probability We give you an introduction to probability through the example of flipping a quarter and rolling a die. https://cdn.kastatic.org/ka-youtube-converted/uzkc-qNVoOk.mp4/uzkc-qNVoOk.mp4 498 Data Analysis and Constructions https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-basic-prob/v/simple-probability 2021-07-02T09:35:30Z Simple probability: yellow marble In order to find the probability of picking a yellow marble from a bag, we have to first determine the number of possible outcomes, and then how many of them meet our constraints. Sal Khan video https://cdn.kastatic.org/googleusercontent/QAV26IABf-iDWDJ_6zdYp8m2wTLmlFVUjPmizBRBXw_9kRKVGOwhZPlMsInPT9S6ES9SfA9DSziQzVgg6GORCvO1XQ Simple probability: yellow marble In order to find the probability of picking a yellow marble from a bag, we have to first determine the number of possible outcomes, and then how many of them meet our constraints. https://cdn.kastatic.org/ka-youtube-converted/yUaI0JriZtY.mp4/yUaI0JriZtY.mp4 176 Data Analysis and Constructions https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-basic-prob/v/probability-1-module-examples 2021-07-02T09:35:29Z Simple probability: non-blue marble In this example we are figuring out the probability of randomly picking a non-blue marble from a bag. Again, we'll have to think about the possible outcomes first. Sal Khan video https://cdn.kastatic.org/googleusercontent/DxiBJPMM0ibk047TiDi8I53t6F2cvmgMFk_CTH_Jw1NA2x3bDV8zWQG1Om75lW4gHKmGDWCHU7RHEeKfBiS-u8dC Simple probability: non-blue marble In this example we are figuring out the probability of randomly picking a non-blue marble from a bag. Again, we'll have to think about the possible outcomes first. https://cdn.kastatic.org/ka-youtube-converted/mLE-SlOZToc.mp4/mLE-SlOZToc.mp4 596 Data Analysis and Constructions https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-basic-prob/e/probability_1 2026-03-15T17:11:10.340789021Z Simple probability Practice finding probabilities of events, such as rolling dice, drawing marbles out of a bag, and spinning spinners. Ben Alpert exercise https://www.khanacademy.org/math/geometry/hs-geo-congruence/hs-geo-bisectors/v/constructing-parallel-lines 2022-09-10T02:03:40.164764806Z Geometric constructions: parallel line We can parallel lines with compass and straightedge by creating a pair of congruent corresponding angles on a transversal. video https://cdn.kastatic.org/ka_thumbnails_cache/a98a299d-ab26-4081-9f38-30b6631e87a8_1280_720_base.png Geometric constructions: parallel line We can parallel lines with compass and straightedge by creating a pair of congruent corresponding angles on a transversal. https://cdn.kastatic.org/ka-youtube-converted/BHLre3UiIho.mp4/BHLre3UiIho.mp4 123 Data Analysis and Constructions https://www.khanacademy.org/math/class-7-od/x48ac5f37f7da7ee1:data-analysis-and-constructions-odia-class-7/x48ac5f37f7da7ee1:geometric-constructions-class-7-odia/e/justify-construction-odia-class-7 2025-04-08T09:48:50.841929051Z Justify Construction In this exercise, we will try to reason through some of the construction problems being presented here. Satya Swaroop exercise