https://hi.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:statistics/xfd53e0255cd302f8:mean-median-mode-range/v/statistics-intro-mean-median-and-mode 2023-03-06T10:49:40.797834645Z सांख्यिकी से परिचय: माध्य, माध्यिका और बहुलक (Statistics intro: Mean, median, & mode) The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest. The mode is the number that occurs most often in a data set. Sal Khan video https://cdn.kastatic.org/googleusercontent/CCE1P6AZCPMYb0O7ETz8QOfZprfRYDEJ6SzhUngxHNsFrM6XOvqMRjghbAf1r4TiUcKH7HiPbXA8jlxRUDeTW2_V सांख्यिकी से परिचय: माध्य, माध्यिका और बहुलक (Statistics intro: Mean, median, & mode) The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest. The mode is the number that occurs most often in a data set. https://cdn.kastatic.org/ka-youtube-converted/h8EYEJ32oQ8.mp4/h8EYEJ32oQ8.mp4 534 सांख्यिकी (Statistics) https://hi.khanacademy.org/math/ncert-class-11/xea4762213f311c5e:statistics-ncert-new/xea4762213f311c5e:mean-deviation/v/mean-absolute-deviation-example 2025-09-05T11:34:25.155269708Z माध्य निरपेक्ष विचलन का उदाहरण . video https://cdn.kastatic.org/googleusercontent/PGSQrj24qymmwdkCkzWuG4U-XlOxBF96Bcceq_wlPxgoxV0XyKIfU8xZ3u0OJ5JjXHmd9RQsbti-eMNU8RPfn-4H माध्य निरपेक्ष विचलन का उदाहरण . https://cdn.kastatic.org/ka-youtube-converted/tRkeFlw4ins.mp4/tRkeFlw4ins.mp4 382 सांख्यिकी (Statistics) https://hi.khanacademy.org/math/revision-term-1-ncert-math-class-10/x2f82315bf1a14434:week-3/x2f82315bf1a14434:statistics/v/assumed-mean-deviation-method 2024-11-05T09:17:20.455220517Z कल्पित माध्य / विचलन विधि In this video the assumed mean method to find the mean of grouped data is discussed. This method also involves finding deviation of each group observation from the assumed mean and is one of the shortcut methods to find mean of grouped data when the data values become large. Devashish Phadnis video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw कल्पित माध्य / विचलन विधि In this video the assumed mean method to find the mean of grouped data is discussed. This method also involves finding deviation of each group observation from the assumed mean and is one of the shortcut methods to find mean of grouped data when the data values become large. https://cdn.kastatic.org/ka-youtube-converted/d6IPd-arvFE.mp4/d6IPd-arvFE.mp4 290 सांख्यिकी (Statistics) https://hi.khanacademy.org/math/revision-term-1-ncert-math-class-10/x2f82315bf1a14434:week-3/x2f82315bf1a14434:statistics/v/median-of-grouped-data 2024-11-05T09:17:20.455220517Z वर्गीकृत आँकड़ों का माध्यक (Median of Grouped Data) How can we find the median of grouped data? Find out in this video, with an example scaffold. Devashish Phadnis video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw वर्गीकृत आँकड़ों का माध्यक (Median of Grouped Data) How can we find the median of grouped data? Find out in this video, with an example scaffold. https://cdn.kastatic.org/ka-youtube-converted/gTOhMxpGan0.mp4/gTOhMxpGan0.mp4 334 सांख्यिकी (Statistics) https://hi.khanacademy.org/math/ncert-class-11/xea4762213f311c5e:statistics-ncert-new/xea4762213f311c5e:variance-and-standard-deviation/v/range-variance-and-standard-deviation-as-measures-of-dispersion 2025-09-05T11:34:25.155269708Z प्रकीर्णन की माप: परिसर, प्रसरण और मानक विचलन Range, variance, and standard deviation all measure the spread or variability of a data set in different ways. The range is easy to calculate—it's the difference between the largest and smallest data points in a set. Standard deviation is the square root of the variance. Standard deviation is a measure of how spread out the data is from its mean. Sal Khan video https://cdn.kastatic.org/googleusercontent/F7u5R7KncKAiNkwZK0i3DTxYrCpwFG1YuVhgwHtYHWUsRNB9rlgxRnkqR4onfr1ex44Yc9FmnodarnP_ZcWwhCg प्रकीर्णन की माप: परिसर, प्रसरण और मानक विचलन Range, variance, and standard deviation all measure the spread or variability of a data set in different ways. The range is easy to calculate—it's the difference between the largest and smallest data points in a set. Standard deviation is the square root of the variance. Standard deviation is a measure of how spread out the data is from its mean. https://cdn.kastatic.org/ka-youtube-converted/xzDNlUZVGH4.mp4/xzDNlUZVGH4.mp4 754 सांख्यिकी (Statistics)