Based on past history, a fire station reports that 25% of the calls to the station are false alarms, 60% are for small fires that can be handled by station personnel without outside assistance, and 15% are for major fires that require outside help.
a. Construct a relative frequency bar chart that represents the distribution of the variable x = type of call, where type of call has three categories: false alarm, small fire, and major fire. What is the underlying population for this variable?
b. Based on the given information, we can write P(x 5 false alarm) = .25. Use the other two relative frequencies shown in the bar chart from Part (a) to write two other probability statements.