Wikipedia:Reference desk/Archives/Mathematics/2019 February 18

= February 18 =

Standard deviation question
If there's 4.3% support for something and this support increases by one standard deviation, how much support will there now be for this? 68.96.93.163 (talk) 00:49, 18 February 2019 (UTC)
 * Assuming a normal distribution, then $$p=0.043$$ has a z-score of $$z=-1.717$$. All we then have to do is add 1 to this z score and do the inverse lookup to find the answer of $$p=0.236$$. Iffy★Chat -- 08:18, 18 February 2019 (UTC)

1 with a googolplex zeroes
What is the name of a number which contains 1 followed by a googolplex zeroes? 68.96.93.163 (talk) 06:24, 18 February 2019 (UTC)
 * A googolplexplex (not joking).--Jasper Deng (talk) 06:29, 18 February 2019 (UTC)


 * googol = 10 ^ 100
 * googolplex = 10 ^ googol
 * googolplexplex = 10 ^ googolplex
 * googolplexplexplex = 10 ^ googolplexplex

49.177.234.140 (talk) 09:05, 18 February 2019 (UTC)


 * See Names of large numbers for more information and some alternative names. Rojomoke (talk) 10:23, 18 February 2019 (UTC)

This naming system by Joel David Hamkins has gotten traction in a few places, I think. 173.228.123.166 (talk) 07:13, 19 February 2019 (UTC)