One advantage of renewable resources is that they a. produce cleaner energy. b.are more expensive than traditional energy sources. c.are unpredictable or have an inconsistent reliability. d.are difficult to generate large enough quantities.

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397