https://www.khanacademy.org/math/statistics-probability/random-variables-stats-library/random-variables-discrete/v/discrete-and-continuous-random-variables 2022-11-16T04:22:43.7414897Z Discrete and continuous random variables Discrete random variables can only take on a finite number of values. For example, the outcome of rolling a die is a discrete random variable, as it can only land on one of six possible numbers. Continuous random variables, on the other hand, can take on any value in a given interval. For example, the mass of an animal would be a continuous random variable, as it could theoretically be any non-negative number. Sal Khan video https://cdn.kastatic.org/googleusercontent/C-EUxA7o10ncTqWb2z3f09iyZER2yjTS385EnCOZNmur3MrWqHqiONcNUW0u6_lNg8yGeV8CPihpCspEs_uo-J5z Discrete and continuous random variables Discrete random variables can only take on a finite number of values. For example, the outcome of rolling a die is a discrete random variable, as it can only land on one of six possible numbers. Continuous random variables, on the other hand, can take on any value in a given interval. For example, the mass of an animal would be a continuous random variable, as it could theoretically be any non-negative number. https://cdn.kastatic.org/ka-youtube-converted/dOr0NKyD31Q.mp4/dOr0NKyD31Q.mp4 717 Estimated mean https://www.khanacademy.org/math/cambridge-o-level-mathematics-4024/x3f4c73d082a798eb:statistics/x3f4c73d082a798eb:estimated-mean/v/finding-mean-of-grouped-data-pk 2025-11-29T07:01:24.846724792Z Finding Mean of Grouped Data Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Finding Mean of Grouped Data Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/oTxvxkk-o8A.mp4/oTxvxkk-o8A.mp4 307 Estimated mean https://www.khanacademy.org/math/cambridge-o-level-mathematics-4024/x3f4c73d082a798eb:statistics/x3f4c73d082a798eb:estimated-mean/v/assumed-mean-deviation-method-pk 2025-11-29T07:01:24.846724792Z Assumed mean /deviation method Created by Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Assumed mean /deviation method Created by Khan Academy https://cdn.kastatic.org/ka-youtube-converted/-50G-so-Wdo.mp4/-50G-so-Wdo.mp4 290 Estimated mean https://www.khanacademy.org/math/ka-math-class-11/x0419e5b3b578592a:statistics-ncert-new/x0419e5b3b578592a:mean-deviation/e/mean-of-grouped-data 2025-12-30T07:05:15.972746521Z Mean of grouped data Let's practice finding mean of grouped data. ashish exercise https://www.khanacademy.org/economics-finance-domain/class-11-statistics-for-economics/x28951617f4a8810f:measures-of-central-tendency/x28951617f4a8810f:mean/e/finding-mean-from-frequency-table 2025-12-30T07:05:15.972746521Z Finding mean from frequency table Let's solve some problems where we find mean from a frequency table. Aakash Bagga exercise https://www.khanacademy.org/math/ap-statistics/summarizing-quantitative-data-ap/mean-median-more/v/estimating-mean-median-displays 2022-10-07T02:10:10.749739204Z Estimating mean and median in data displays Estimating mean and median in data displays video https://cdn.kastatic.org/googleusercontent/HZ828H-ciY4zcLlCqlSkBA6qjNM3ck3wmCtD-8m3shFImm30T8KZBRvFR3_kZEcltC5l7H1gKD2hcdWlNmVxp_pq Estimating mean and median in data displays Estimating mean and median in data displays https://cdn.kastatic.org/ka-youtube-converted/rb-T5ppxJk0.mp4/rb-T5ppxJk0.mp4 275 Estimated mean