I've been stuck with this question for weeks. There's no answer/working steps for this question. Any help would be appreciated.
If there are 400 spaces in the car park, and it is open from 8:00 AM - 8:00 PM, calculate (or estimate) its percentage utilization.
With $400$ spaces, each available for $12$ hours, that gives you $4800$ possible hours of cars parked. Looking at the data, you could use the midpoint of each time range as being representative of how long cars are parked. So for example for the range $0$ to $1$ hour , there are $452$ cars, we estimate that they stay for an average of $0.5$ hours each. This uses up $452\cdot(0.5) = 226$ hours of parking time. Do the same for the other time ranges (e.g., $737\cdot(1.5)$ and so on) to get a total of how much car time is used. Then compare to $4800$ total possible car-hours to get your percentage utilization.