Question: Please specify the sample spaces for the following statistical experiments.

(a) A student counts how many cars pass by his house in an interval of 10 hours.

(b) A student throws a die 20 times and count how many times she gets 6.

(c) The weight change of a person who goes through a weight loss program.

(d) An engineer orders a batch of 100 electrical circuits. He records their life times. His real interest is the number of circuits that have life time at least 1000 hours.