Psychologists say that 95% of married women claim that their husband's mother is the biggest bone of contention and their marriage as sex and money are lower rated areas of contention suppose at 9 married women have coffee together one morning and find that the following probabilities all of them disliked their mother in law none of them disliked their mother in law at least 7 of them disliked their mother in law no more than 6 of them disliked their mother in law