Determine whether the following value is a continuous random variable, discrete random variable, or not a random variable. a. The number of people in a restaurant that has a capacity of 300 b. The hair color of adults in the United States c. The time required to upload a file to the Internet d. The amount of rain in City Upper A during July e. The time it takes for a light bulb to burn out f. The number of runs scored during a baseball game