Tutoring statistics, you might imagine everyday situations. The tutor brings up one. Let’s imagine we have two mile runners. Runner 1, called R1, has mean time 4:45, with standard deviation 10s; R2 has mean time 5:00 with standard deviation 12s. …

Statistics: how often can something “better” be expected to perform better? Read more »

Tagged with: ,

Tutoring probability, a better example than this might be hard to find. The tutor explains about the Las Vegas square in Careers® by Parker Brothers. I explain expected value in my post from August 16, 2013, showing by example that …

Lifestyle: games: why Las Vegas in Parker Brothers’ Careers® is a good deal. Read more »

Tagged with: ,

The tutor reports an interesting statistic. In 2013, the world population was approximately 7.07 billion. At the same time, people aged ≥ 100 numbered about 450 thousand. Those figures suggest that a completely random person on Earth has probability 450 …

Probability, demographics: a person’s chance of reaching age 100 Read more »

Tagged with: ,