Question

the summer solstice can occur on any day of the week, with each day being equally likely. what is the propability the summer solstice will occur on a weekday

Answer 1

There are seven days in the week.  Out of those seven days, five are weekdays and two are weekends. The probability of the summer solstice occurring on a weekday is a ratio for the # of weekdays/the # of days in a week: 5/7.