What is the correlation coefficient for the data in the table?
The table shows the average number of hours of daylight
per day for the last four months of the year.
Monthly Daylight Hours
Month of Average hours of
the year daylight per day
12.37
10
11.37
10.57
-0.993
-0.791
0.791
0.993
12

Over the course of the school year, you keep track of how much snow falls on a given day and whether it was a snow day. your data indicates that of twenty-one days with less than three inches of snow, five were snow days, while of the eight days with more than three inches of snow, six were snow days. if all you know about a day is that it is snowing, what is the probability that it will be a snow day?