Question

the graph below displays a fire departments response time, which measures the time from when the alarm is sounded at the firehouse to the time the first fire engine leaves the station. fire department response times relative frequency which interval accounts for the lowest percentage of response times? 20 - 30 seconds 30 - 40 seconds 70 - 80 seconds 80 - 90 seconds

Explanation:

Step1: Observe the bar - chart

Check the relative frequencies for each time - interval.

Step2: Compare the heights of the bars

The shorter the bar, the lower the relative frequency.

Step3: Identify the interval

The bar for the 80 - 90 seconds interval is the shortest.

Answer:

80 - 90 seconds