Electromagnetic radiation with a frequency of 1.26 x 1015 Hz has a wavelength of a. bc x 10-4m. The values for a b. c and d are
and
(Record your four-digit answer in the numerical-response section on the answer sheet.)

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?