Sociologists Say

Question

Sociologists say that 80% of married women claim that their husband's mother is the biggest bone of contention in their marriages (sex and money are lower-rated areas of contention). Suppose that six married women are having coffee together one morning. Find the following probabilities. 

1. At least 4 of them dislike their mother in law.
2. No more than 3 of them dislike their mother in law.

Answer 1

Hi Nativity, it sounds like you're describing binomial probability problems. Visit geogebra.org/classic#probability and change "Normal" to "Binomal". Then set n=6 and p=.8. You can use the sliders or fields to calculate the probabilities you're seeking.