MÉDIA ARITMÉTICA E MÉDIA PONDERADA - QUAL A DIFERENÇA? Prof. Robson Liers - Mathematicamente

Link to support the channel: https://apoia.se/mathematicamente If this video helps you and you want the Mathematicamente channel with Prof. Robson Liers to continue growing, SUBSCRIBE, click "Like," and SHARE. This video is part of a series of videos on Arithmetic Mean and Weighted Mean. Also check out: 5-SECOND ALGEBRA TRICK https://goo.gl/dy4PCY 3-SECOND POWER TRICK https://goo.gl/8RLnKT HOW TO INTERPRET PROBLEMS – PORTUGUESE IN MATHEMATICS https://goo.gl/FPUjYd 5-SECOND PERCENTAGE TRICK https://goo.gl/AETiub IMPROPER FRACTION TO MIXED NUMBER https://goo.gl/8AiQGL ADDITION AND SUBTRACTION OF FRACTIONS https://goo.gl/jevKHR FIRST-DEGREE EQUATION SYSTEM REPLACEMENT https://goo.gl/Npp6LF MATH TRICKS – FULL PLAYLIST https://goo.gl/5CuoGA LCM OR GCD? WHICH ONE TO USE? https://goo.gl/Thqabt Follow me on social media: FACEBOOK:   / robsonliers.professor   Instagram: @prof.robsonliers Email: [email protected] Arithmetic Mean: Example 1: Find the arithmetic mean of the numbers 3, 7, 2, and 6: Example 2: The arithmetic mean of 10 numbers is 45, and the mean of the first 8 is 40. The sum of the 2 excluded numbers is: Weighted Mean: Example 1: Find the weighted mean of the numbers 12, 20, and 18, with weights of 4, 3, and 5, respectively: (CEFET) João achieved the following bimonthly grades in Math: At João's school, the FINAL GRADE is the weighted average of his four bimonthly grades. The first semester grade has a weight of 1; the second semester grade has a weight of 2; the third semester grade has a weight of 3; and the fourth semester grade has a weight of 4. Determine João's FINAL GRADE: