A range for Ro for COVID-19 early in 2020

In 2020 we developed a formula for Ro, the number of people one person may infect over a ten-day period when there is no immunity, based on the daily increase, r, in the number of cases of COVID-19. This year we considered that Ro = r^2.5 gave a better estimate for Ro. We obtain and…

Review of the Retirement Villages Act 2003~ My DMF recommendations

Te Tūāpapa Kura Kāinga – NZ Ministry of Housing and Urban Development (HUD) is undertaking a review of the Retirement Villages Act 2003, and its associated regulations and codes. See: https://consult.hud.govt.nz/policy-and-legislation-design/review-of-retirement-villages-act-2003/ The Review opened on 8 Aug 2023, and closes 20 Nov 2023. You may make submissions now. You may find it easiest to download…

Matches in two decks of shuffled cards: My hands should be sore!

When reading the library book by Adam Spencer below, a question was asked #52- can you guess why? My hands should be sore from shuffling two decks of cards 2,000,000 times, each time going through the two decks turning over one card from each deck to see how many times there was a match (same…