We will use probabilistic models for different characteristics of winter in Chicago to calculate meaningful probabilities and expected values. The following is a list of random variables related to winter in Chicago. Which of the following is a random variable related to winter in Chicago?
1) Daily high temperature in degrees Fahrenheit on a random winter day in Chicago
2) Average precipitation in inches on a random winter day in Chicago
3) Number of snowstorms in a random winter season in Chicago
4) Length of daylight in hours on a random winter day in Chicago