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  1. How can I find the median of this frequency distribution

    Aug 26, 2011 · Given that you do not know any more details about the frequency distribution, then just use the definition of the median which is essentially a given value A such that 50% of the …

  2. algebra precalculus - How do people perform mental arithmetic …

    Aug 12, 2015 · This is the famous picture " Mental Arithmetic. In the Public School of S. Rachinsky. " by the Russian artist Nikolay Bogdanov-Belsky. The problem on the blackboard …

  3. Calculating a new average without having the full set of no.s

    May 22, 2022 · Say we have the below data: 100 120 80 110 The average of these is 84.5 Is there any way, I can store some data from this original data and calculate new average when …

  4. Express 99 2/3% as a fraction? No calculator

    Jun 9, 2015 · So your proposed algorithm for teaching kids to perform an additional multiplication and subtraction to get an answer, and just hope that they notice when "difficult" numbers (like …

  5. Number of digits in a series of numbers - Mathematics Stack …

    Jun 23, 2011 · I have a list of the numbers from 1 to 1000. How can I find the number of 0's, 1's, 2's, and 9's that are used? The answers are 192, 301, 300, 300 respectively, but I'm interested …

  6. Rolling a die 100 times and adding results

    Jan 26, 2014 · Continue to help good content that is interesting, well-researched, and useful, rise to the top! To gain full voting privileges,